{
 "id": "person/hoca-ishak-efendi",
 "class": "person",
 "slug": "hoca-ishak-efendi",
 "label": {
  "ar": "خوجه إسحاق أفندي",
  "en": "Hoca İshak Efendi",
  "ur": "خوجہ اسحاق آفندی"
 },
 "summary": {
  "ar": "إسحاق بن عبد الله، المعروف بخوجه إسحاق أفندي وباش خوجه (نحو 1774 – 1836)، رياضي ومهندس ومربٍّ عثماني من آرطا (ناردا) من أعمال يانيا، وكبير معلّمي مدرسة الهندسة العسكرية السلطانية في إسطنبول. وهو من روّاد العلم الحديث في تركيا؛ أدخل حساب التفاضل والتكامل إلى التعليم العثماني، وجمع «مجموعة العلوم الرياضية» في أربعة مجلدات (1831–1834)، وترجم وألّف نحو ثلاثة عشر مجلدًا آخر من كتب العلوم.",
  "en": "İshak ibn Abdullah, known as Hoca İshak Efendi and as Başhoca (c. 1774 – 1836), was an Ottoman mathematician, engineer and educator from Arta (Narda) in the Yanya province, head instructor (başhoca) of the Imperial School of Military Engineering in Istanbul. A pioneer of modern science in Turkey, he was the first to treat differential and integral calculus in Ottoman teaching and compiled the four-volume Mecmua-i Ulum-i Riyaziyye (1831–1834), translating and writing some thirteen further volumes of scientific textbooks.",
  "ur": "اسحاق بن عبد اللہ، خوجہ اسحاق آفندی اور باش خوجہ کے نام سے مشہور (تقریباً 1774ء – 1836ء)، یانیہ کے علاقے آرطا (ناردا) سے تعلق رکھنے والے عثمانی ریاضی دان، انجینئر اور معلم تھے، اور استنبول کی سلطانی عسکری انجینئرنگ مدرسے کے باش خوجہ (سربراہ استاد) رہے۔ ترکی میں جدید سائنس کے بانیوں میں سے تھے؛ عثمانی تعلیم میں تفاضلی و تکاملی حساب کا ذکر سب سے پہلے انہوں نے کیا اور چار جلدوں پر مشتمل «مجموعۂ علومِ ریاضیہ» (1831–1834ء) مرتب کی، اس کے علاوہ سائنسی کتب کے تقریباً تیرہ مزید جلدوں کا ترجمہ و تصنیف کیا۔"
 },
 "stub": false,
 "wings": [
  "people"
 ],
 "regions": [
  "anatolia-balkans"
 ],
 "periods": [],
 "tags": [],
 "aliases": [],
 "themes": [],
 "span": {
  "earliest": 1774.0014510907138,
  "latest": 1837.0006913214875
 },
 "display": {
  "start": {
   "edtf": "1774",
   "calendar": "gregorian",
   "precision": "year",
   "status": "debated",
   "note": "Born at Arta (Narda) in the Yanya province. Most texts give about 1774, the Turkish article and Wikidata the year flatly, the English about 1774. A rival scholarly hypothesis identifies him with Sultanzade İshak Bey, a kapıcıbaşı's son born in 1748, the question Mehmet Seyitdanlıoğlu's article poses; the majority reading is built and the rival preserved. The year spans 1187–1188 AH, so no Hijri year is built.",
   "sources": [
    "source/wikipedia-hoca-ishak-efendi-en",
    "source/wikipedia-hoca-ishak-efendi-tr",
    "source/dia-ishak-efendi-bashoca",
    "source/wikidata-hoca-ishak-efendi"
   ]
  },
  "end": {
   "edtf": "1836",
   "calendar": "gregorian",
   "precision": "year",
   "status": "debated",
   "note": "Died at Suez and was buried there, returning from the Medina restoration mission on which court intrigue had sent him. The TDV entry, the Turkish article and the German article give 1836; the English article gives the return in 1834 or 1835 and Wikidata gives 1835; the monograph tradition in the Springer literature gives 1834. All three readings are preserved and 1836 is built on the TDV entry and the Turkish article. The year spans 1251–1252 AH, so no Hijri year is built.",
   "sources": [
    "source/dia-ishak-efendi-bashoca",
    "source/wikipedia-hoca-ishak-efendi-tr",
    "source/wikipedia-hoca-ishak-efendi-en",
    "source/wikidata-hoca-ishak-efendi"
   ]
  }
 },
 "data": {
  "names": [
   {
    "value": "İshak ibn Abdullah",
    "kind": "full"
   },
   {
    "value": "Yanyavî İshak",
    "kind": "nisba"
   },
   {
    "value": "Başhoca",
    "kind": "laqab"
   }
  ],
  "gender": "male",
  "roles": [
   "mathematician",
   "engineer",
   "teacher",
   "writer"
  ],
  "born": {
   "edtf": "1774",
   "calendar": "gregorian",
   "precision": "year",
   "status": "debated",
   "note": "Born at Arta (Narda) in the Yanya province. Most texts give about 1774, the Turkish article and Wikidata the year flatly, the English about 1774. A rival scholarly hypothesis identifies him with Sultanzade İshak Bey, a kapıcıbaşı's son born in 1748, the question Mehmet Seyitdanlıoğlu's article poses; the majority reading is built and the rival preserved. The year spans 1187–1188 AH, so no Hijri year is built.",
   "sources": [
    "source/wikipedia-hoca-ishak-efendi-en",
    "source/wikipedia-hoca-ishak-efendi-tr",
    "source/dia-ishak-efendi-bashoca",
    "source/wikidata-hoca-ishak-efendi"
   ]
  },
  "died": {
   "edtf": "1836",
   "calendar": "gregorian",
   "precision": "year",
   "status": "debated",
   "note": "Died at Suez and was buried there, returning from the Medina restoration mission on which court intrigue had sent him. The TDV entry, the Turkish article and the German article give 1836; the English article gives the return in 1834 or 1835 and Wikidata gives 1835; the monograph tradition in the Springer literature gives 1834. All three readings are preserved and 1836 is built on the TDV entry and the Turkish article. The year spans 1251–1252 AH, so no Hijri year is built.",
   "sources": [
    "source/dia-ishak-efendi-bashoca",
    "source/wikipedia-hoca-ishak-efendi-tr",
    "source/wikipedia-hoca-ishak-efendi-en",
    "source/wikidata-hoca-ishak-efendi"
   ]
  },
  "faith": [
   {
    "value": "unknown",
    "basis": "unknown",
    "note": "The TDV entry records that he was of a Jewish family and that he and his brother Esad Efendi entered Islam after their father's death and came to Istanbul. The English article instead says his father had converted to Islam, and the Turkish article reports that Fuat Köprülü and Bursalı Mehmed Tahir disputed the Jewish origin altogether, claiming he was a Turk, some sources making him a Muslim of Karlova. No text names a school or order for the man himself, and conversion and family background settle no value under the founder's rule, so the value is unknown with the attestations stated in full. Wikidata's religion statement files Islam generically and is not relied on.",
    "sources": [
     "source/dia-ishak-efendi-bashoca",
     "source/wikipedia-hoca-ishak-efendi-en",
     "source/wikipedia-hoca-ishak-efendi-tr"
    ]
   }
  ],
  "external_ids": {
   "wikidata": "Q3138918"
  },
  "sources": [
   "source/wikipedia-hoca-ishak-efendi-en",
   "source/wikipedia-hoca-ishak-efendi-tr",
   "source/dia-ishak-efendi-bashoca",
   "source/wikidata-hoca-ishak-efendi"
  ],
  "provenance": {
   "layer": "own-research",
   "source": "English Wikipedia «Ishak Efendi» (revision 1363995970 of 13 July 2026), Turkish Wikipedia «Hoca İshak Efendi» (revision 38242714 of 13 October 2026), Ekmeleddin İhsanoğlu's entry «İSHAK EFENDİ, Başhoca» in the TDV İslâm Ansiklopedisi (2000, online edition, read in-session 1 November 2026) and Wikidata Q3138918 (item revision 2555234553 of 9 October 2026, re-asserted identical on a second live query), fetched live in-session on 1 November 2026; the QID was grounded from the Turkish article's own page property, the English article agreeing. No Arabic or Urdu article exists. IDENTITY RESOLUTION — the queue row gives 1690–1750 and its own annotation warns of conflation with the d. 1834 namesake. No source read attests any Hoca İshak Efendi of 1690–1750, not the English, Turkish, German, French or Romanian articles, not the TDV encyclopaedia, not Wikidata; the only 1750 attached to this name anywhere is a demonstrably wrong date for his Mecmua-i Ulum-i Riyaziyye (published 1831–1834) in one geophysics survey table, and the only early birth year in the literature is the rival 1748 hypothesis for this same man. The name is borne by exactly one attested figure, the Mühendishane başhoca, and this record is built for him with the sources' dates, the queue's 1690–1750 flagged as a corruption of his row; Ebuishakzade İshak Efendi (1679–1734), the şeyhülislam, and Harputlu İshak Efendi (1801–1892) are different men who answer to different names. Existence checked against origin/main before building — no record holds this man under hoca-ishak-efendi, ishak or any name fragment. No place entity exists for Arta or Suez, so no born_in or died_in edge is written.",
   "generated_by": "Muse (Muse Spark 1.3)",
   "run": "modern-figures-wave-174m"
  },
  "status": {
   "review": "published",
   "generated_by": "Muse (Muse Spark 1.3)"
  },
  "occupations": [
   {
    "job": "job/teacher",
    "kind": "secondary",
    "status": "historical",
    "note": "bootstrap from roles, 1 Nov 2026 merge map; dates, places and kind to be read in the Phase 3 sweep",
    "sources": [
     "source/wikipedia-hoca-ishak-efendi-en",
     "source/wikipedia-hoca-ishak-efendi-tr",
     "source/dia-ishak-efendi-bashoca",
     "source/wikidata-hoca-ishak-efendi"
    ]
   }
  ]
 },
 "prose": {
  "ar": {
   "sections": [
    {
     "heading": "موجز",
     "markdown": "إسحاق بن عبد الله، المعروف بخوجه إسحاق أفندي ولقبه باش خوجه (كبير المعلّمين)، رياضي ومهندس ومربٍّ عثماني، وُلد غالبًا سنة 1774 في آرطا وتوفي سنة 1836 على ما تذكره موسوعة الإسلام التركية (TDV) والمقالة التركية.{cite:wikipedia-hoca-ishak-efendi-en}{cite:wikipedia-hoca-ishak-efendi-tr}{cite:dia-ishak-efendi-bashoca} ويُعدّ من الروّاد المؤسسين للعلم الحديث في تركيا.{cite:wikipedia-hoca-ishak-efendi-tr} وبوصفه كبير معلّمي مدرسة الهندسة العسكرية السلطانية أصلح تعليمها، و«مجموعة العلوم الرياضية» في أربعة مجلدات، المنشورة بين 1831 و1834، أول نص تركي مطبوع يجمع كثيرًا من العلوم الطبيعية والرياضية معًا.{cite:wikipedia-hoca-ishak-efendi-tr}{cite:wikipedia-hoca-ishak-efendi-en} وهو أول من تحدّث في تركيا عن حساب التفاضل والتكامل.{cite:wikipedia-hoca-ishak-efendi-tr}"
    },
    {
     "heading": "الأصل والتعليم",
     "markdown": "وُلد في آرطا، وهي ناردا عند مدخل الموسوعة، من أعمال يانيا، في حي جلال باشا.{cite:dia-ishak-efendi-bashoca}{cite:wikipedia-hoca-ishak-efendi-tr} وفي أصله تختلف النصوص وتُذكر كما وردت: فيروي مدخل الموسوعة أنه من أسرة يهودية وأنه دخل هو وأخوه أسعد أفندي في الإسلام بعد موت أبيهما وقدما إلى إسطنبول؛ وتذكر المقالة الإنجليزية أن أباه هو الذي اعتنق الإسلام؛ وتروي المقالة التركية أن فؤاد كوبرولي وبورسالي محمد طاهر اعترضا على الأصل اليهودي وزعما أنه تركي، وبعض المصادر تجعله مسلمًا من كارلوفا.{cite:dia-ishak-efendi-bashoca}{cite:wikipedia-hoca-ishak-efendi-en}{cite:wikipedia-hoca-ishak-efendi-tr} ولا يسمّي أي نص مدرسة أو طريقة له هو، فتُسجَّل عقيدته غير معلومة، فلا الاعتناق ولا أصل الأسرة يثبتان قيمة. وتعلّم في محيط أسرته العبرية واليونانية، ويُظن أنه تخرّج في مدرسة شرعية وتعلّم التركية والعربية والفارسية.{cite:wikipedia-hoca-ishak-efendi-tr} وثمة فرضية منافسة عند بعض الباحثين تجعله هو نفسه سلطان زاده إسحاق بك، ابن أحد كبار البوابين، المولود سنة 1748.{cite:wikipedia-hoca-ishak-efendi-tr}"
    },
    {
     "heading": "مدرسة الهندسة والباب العالي",
     "markdown": "تفيد سجلات مدرسة الهندسة العسكرية السلطانية أنه درس فيها بين 1806 و1815، وأمضى تسع سنوات في سنتَيها الأخيرتين لعدم خلوّ مكان في الصفوف العليا.{cite:wikipedia-hoca-ishak-efendi-tr} وعُيّن سنة 1816 أستاذًا للرياضيات في المدرسة — وتذكر المقالة الإنجليزية 1815 أو 1816 — ومن هذا التعليم جاءه لقب «خوجه» أي المعلّم.{cite:wikipedia-hoca-ishak-efendi-tr}{cite:wikipedia-hoca-ishak-efendi-en} وسافر إلى المدينة المنورة مساعدًا للباش خوجه حينئذ حسين رفقي الطماني المكلَّف بترميم الأبنية المقدسة هناك.{cite:wikipedia-hoca-ishak-efendi-tr} وبموت يحيى ناجي أفندي سنة 1824 صار ترجمان الباب العالي، وبقي في المنصب حتى 1828 أو 1829 حين عُزل، ربما بمنافسة كاتب السر برتو باشا.{cite:wikipedia-hoca-ishak-efendi-en}{cite:wikipedia-hoca-ishak-efendi-tr} وفي أثناء الحرب الروسية التركية 1828–29 أشرف على بناء الحصون وتفتيشها في البلقان قبل أن يُستدعى.{cite:wikipedia-hoca-ishak-efendi-en}{cite:wikipedia-hoca-ishak-efendi-tr}"
    },
    {
     "heading": "الباش خوجه والكتب المدرسية",
     "markdown": "ارتقى إلى منصب كبير المعلّمين (باش خوجه) في المدرسة في كانون الأول 1830 أو كانون الثاني 1831، وبقي فيه حتى 1836 على رواية المقالة التركية.{cite:wikipedia-hoca-ishak-efendi-en}{cite:wikipedia-hoca-ishak-efendi-tr} وبوصفه باش خوجه أعاد تنظيم المنهج على مثال المدارس العسكرية الغربية، وأبعد بعض الأساتذة، وجهّز المدرسة بكراسٍ وطاولات وفصول ذات سبورات بدل جلوس الطلبة على الأرض يكتبون على ركبهم.{cite:wikipedia-hoca-ishak-efendi-tr} وأعظم أعماله «مجموعة العلوم الرياضية» في أربعة مجلدات، تتناول المعادلات الجبرية والهندسة المستوية والتحليلية والمخروطيات وحساب التفاضل والتكامل، وطالت مدة استعمال مصطلحاتها العلمية المشتقة من الجذور العربية في تركيا؛ وكانت تُعلن كلما خرج مجلد من مطبعة المدرسة في جريدة «تقويم وقائع» وتنال إعجاب محمود الثاني.{cite:wikipedia-hoca-ishak-efendi-tr} وبين 1826 و1834 ترجم أو ألّف تباعًا عشرة كتب علمية أخرى في ثلاثة عشر مجلدًا، فأتمّ ترجمات الكتب الفرنسية التي كانت المدرسة تفتقدها.{cite:wikipedia-hoca-ishak-efendi-tr}"
    },
    {
     "heading": "وفاته",
     "markdown": "دبّر سلفه النافذ سيد علي باشا، الذي كانت إصلاحاته شوكة في جانبه، إرساله إلى المدينة بحجة الحج والإشراف على ترميمات الأماكن المقدسة.{cite:wikipedia-hoca-ishak-efendi-en} وفي طريق عودته إلى إسطنبول مات في السويس ودُفن هناك.{cite:wikipedia-hoca-ishak-efendi-en} وتختلف النصوص في عام وفاته: فمدخل الموسوعة والمقالتان التركية والألمانية تذكر 1836، والمقالة الإنجليزية تذكر العودة في 1834 أو 1835 وويكي بيانات تذكر 1835، وتقليد الدراسة المتخصصة يذكر 1834؛ والقراءات الثلاث محفوظة كلها في سجله.{cite:dia-ishak-efendi-bashoca}{cite:wikipedia-hoca-ishak-efendi-tr}{cite:wikipedia-hoca-ishak-efendi-en}{cite:wikidata-hoca-ishak-efendi}"
    }
   ],
   "frontmatter": {
    "id": "person/hoca-ishak-efendi",
    "lang": "ar",
    "source_lang": "ar",
    "translators": []
   },
   "updated": "2026-11-01"
  },
  "en": {
   "sections": [
    {
     "heading": "Summary",
     "markdown": "İshak ibn Abdullah, known as Hoca İshak Efendi and by his title Başhoca, was an Ottoman mathematician, engineer and educator, born probably in 1774 at Arta and deceased in 1836 on the reading the TDV encyclopaedia and the Turkish article give.{cite:wikipedia-hoca-ishak-efendi-en}{cite:wikipedia-hoca-ishak-efendi-tr}{cite:dia-ishak-efendi-bashoca} He is counted among the pioneers who founded modern science in Turkey.{cite:wikipedia-hoca-ishak-efendi-tr} As head instructor of the Imperial School of Military Engineering he reformed its teaching, and his four-volume Mecmua-i Ulum-i Riyaziyye, the \"Compendium of the Mathematical Sciences\", published between 1831 and 1834, was the first printed Turkish text to present many of the natural and mathematical sciences together.{cite:wikipedia-hoca-ishak-efendi-tr}{cite:wikipedia-hoca-ishak-efendi-en} He was the first in Turkey to speak of differential and integral calculus.{cite:wikipedia-hoca-ishak-efendi-tr}"
    },
    {
     "heading": "Origins and education",
     "markdown": "He was born at Arta, the Narda of the TDV entry, in the Yanya province, in the Celalpaşa quarter.{cite:dia-ishak-efendi-bashoca}{cite:wikipedia-hoca-ishak-efendi-tr} On his origin the texts differ and are stated as they stand: the TDV entry records that he was of a Jewish family and that he and his brother Esad Efendi entered Islam after their father's death and came to Istanbul; the English article says his father had converted to Islam; and the Turkish article reports that Fuat Köprülü and Bursalı Mehmed Tahir objected to the Jewish origin and claimed he was a Turk, some sources making him a Muslim of Karlova.{cite:dia-ishak-efendi-bashoca}{cite:wikipedia-hoca-ishak-efendi-en}{cite:wikipedia-hoca-ishak-efendi-tr} No text names a school or order for the man himself, and his faith is therefore recorded as unknown, conversion and family background settling no value. In the family circle he learned Hebrew and Greek, and he is thought to have had a madrasa education, learning Turkish, Arabic and Persian.{cite:wikipedia-hoca-ishak-efendi-tr} A rival scholarly hypothesis would identify him with Sultanzade İshak Bey, a kapıcıbaşı's son born in 1748.{cite:wikipedia-hoca-ishak-efendi-tr}"
    },
    {
     "heading": "The Mühendishane and the Porte",
     "markdown": "By the Imperial School of Military Engineering's registers he studied there between 1806 and 1815, taking nine years over the school's last two years because no place fell vacant in the upper classes.{cite:wikipedia-hoca-ishak-efendi-tr} In 1816 he was appointed a teacher of mathematics (riyaziye) at the school — the English article gives 1815 or 1816 — and the title hoca, \"master\", comes from this teaching.{cite:wikipedia-hoca-ishak-efendi-tr}{cite:wikipedia-hoca-ishak-efendi-en} He went to Medina as assistant to the then başhoca Hüseyin Rıfkı Tamani, who was charged with repairing the holy buildings there.{cite:wikipedia-hoca-ishak-efendi-tr} On Yahya Naci Efendi's death in 1824 he became dragoman, interpreter, of the Sublime Porte, a post he held until 1828 or 1829, when he was dismissed, possibly through the rivalry of the secretary of state Pertev Pasha.{cite:wikipedia-hoca-ishak-efendi-en}{cite:wikipedia-hoca-ishak-efendi-tr} During the Russo-Turkish War of 1828–29 he supervised the building and inspection of fortresses in the Balkans, before being recalled.{cite:wikipedia-hoca-ishak-efendi-en}{cite:wikipedia-hoca-ishak-efendi-tr}"
    },
    {
     "heading": "Başhoca and the textbooks",
     "markdown": "He rose to become head instructor, başhoca, of the school in December 1830 or January 1831, and held the post until 1836 on the Turkish article's account.{cite:wikipedia-hoca-ishak-efendi-en}{cite:wikipedia-hoca-ishak-efendi-tr} As başhoca he reorganised the curriculum on the model of Western military schools, removed some teachers, and furnished the school with chairs, desks and blackboard classrooms in place of students sitting on the floor taking notes on their knees.{cite:wikipedia-hoca-ishak-efendi-tr} His greatest work, the Mecmua-i Ulum-i Riyaziyye in four volumes, treats algebraic equations, plane and analytic geometry, conics and differential and integral calculus, and its scientific terms, coined from Arabic roots, were used in Turkey for a long time; as each volume came off the Mühendishane press it was announced in the Takvim-i Vekayi and met Mahmud II's praise.{cite:wikipedia-hoca-ishak-efendi-tr} Between 1826 and 1834 he translated or wrote, one after another, ten further scientific books in thirteen volumes, completing the French textbook translations the school had lacked.{cite:wikipedia-hoca-ishak-efendi-tr}"
    },
    {
     "heading": "Death",
     "markdown": "His influential predecessor Seyyid Ali Pasha, to whom his reforms were a thorn, contrived to have him sent to Medina under the pretext of the Hajj and of supervising restorations at the holy sites.{cite:wikipedia-hoca-ishak-efendi-en} On the return journey to Istanbul he died at Suez, where he was buried.{cite:wikipedia-hoca-ishak-efendi-en} The year is disputed between the texts: the TDV entry and the Turkish and German articles give 1836, the English article gives the return in 1834 or 1835 and Wikidata 1835, and the monograph tradition gives 1834; all three readings are preserved in his record.{cite:dia-ishak-efendi-bashoca}{cite:wikipedia-hoca-ishak-efendi-tr}{cite:wikipedia-hoca-ishak-efendi-en}{cite:wikidata-hoca-ishak-efendi}"
    }
   ],
   "frontmatter": {
    "id": "person/hoca-ishak-efendi",
    "lang": "en",
    "source_lang": "ar",
    "translators": []
   },
   "updated": "2026-11-01"
  },
  "ur": {
   "sections": [
    {
     "heading": "خلاصہ",
     "markdown": "اسحاق بن عبد اللہ، خوجہ اسحاق آفندی اور باش خوجہ کے لقب سے مشہور، عثمانی ریاضی دان، انجینئر اور معلم تھے، غالباً 1774ء میں آرطا میں پیدا ہوئے اور TDV انسائیکلوپیڈیا اور ترکی مضمون کی قراءت کے مطابق 1836ء میں وفات پائی۔{cite:wikipedia-hoca-ishak-efendi-en}{cite:wikipedia-hoca-ishak-efendi-tr}{cite:dia-ishak-efendi-bashoca} ترکی میں جدید سائنس کے بانیوں میں شمار ہوتے ہیں۔{cite:wikipedia-hoca-ishak-efendi-tr} سلطانی عسکری انجینئرنگ مدرسے کے سربراہ استاد (باش خوجہ) کی حیثیت سے انہوں نے اس کی تعلیم کی اصلاح کی، اور چار جلدوں پر مشتمل «مجموعۂ علومِ ریاضیہ» (1831–1834ء) پہلی مطبوعہ ترکی کتاب تھی جس میں بہت سے طبیعی و ریاضی علوم ایک ساتھ پیش ہوئے۔{cite:wikipedia-hoca-ishak-efendi-tr}{cite:wikipedia-hoca-ishak-efendi-en} ترکی میں تفاضلی و تکاملی حساب کا ذکر سب سے پہلے انہوں نے کیا۔{cite:wikipedia-hoca-ishak-efendi-tr}"
    },
    {
     "heading": "زندگی",
     "markdown": "ان کے اصل کے بارے میں ماخذ مختلف ہیں: TDV مدخل کے مطابق وہ یہودی خاندان سے تھے اور والد کی وفات کے بعد انہوں نے اور ان کے بھائی اسعد آفندی نے اسلام قبول کیا اور استنبول آئے؛ انگریزی مضمون کے مطابق ان کے والد نے اسلام قبول کیا تھا؛ اور ترکی مضمون بتاتا ہے کہ فؤاد کوپرولو اور بورسالی محمد طاہر نے یہودی اصل پر اعتراض کر کے انہیں ترک قرار دیا۔{cite:dia-ishak-efendi-bashoca}{cite:wikipedia-hoca-ishak-efendi-en}{cite:wikipedia-hoca-ishak-efendi-tr} کوئی متن ان کے لیے کوئی مذہب یا سلسلہ نامزد نہیں کرتا، اس لیے ان کا مذہب نامعلوم درج ہے۔ عسکری انجینئرنگ مدرسے میں 1806–1815ء تک تعلیم پائی، 1816ء میں ریاضی کے استاد مقرر ہوئے، 1824–1828/29ء میں بابِ عالی کے ترجمان رہے، اور دسمبر 1830ء/جنوری 1831ء میں باش خوجہ بنے۔{cite:wikipedia-hoca-ishak-efendi-tr}{cite:wikipedia-hoca-ishak-efendi-en} ان کے پیش رو سید علی پاشا کی سازش سے انہیں مدینہ بھیج دیا گیا؛ واپسی پر سویز میں وفات پائی اور وہیں دفن ہوئے — سالِ وفات میں ماخذ 1834، 1835 اور 1836 کے درمیان مختلف ہیں، تینوں قراءتیں ان کے ریکارڈ میں محفوظ ہیں۔{cite:wikipedia-hoca-ishak-efendi-en}{cite:dia-ishak-efendi-bashoca}"
    }
   ],
   "frontmatter": {
    "id": "person/hoca-ishak-efendi",
    "lang": "ur",
    "source_lang": "ar",
    "translators": []
   },
   "updated": "2026-11-01"
  }
 },
 "degree": 0,
 "contemporaries": [
  "person/akbar-ii",
  "person/bilali-muhammad",
  "person/dey-hussein",
  "person/hamdan-khoja",
  "person/mahmud-gami",
  "person/muhammad-ali-pasha",
  "person/omar-ibn-said",
  "person/sidi-ibn-al-mukhtar-al-abyiri",
  "person/hasan-al-attar",
  "person/bahadur-shah-zafar",
  "person/muhammad-al-kanemi",
  "person/muhammad-ibn-ahmad-aknasus"
 ],
 "updated": "2026-11-01",
 "connections": [],
 "related": [],
 "license": {
  "prose": "CC BY-SA 4.0",
  "data": "CC0 1.0"
 }
}