al-Ashraf Umar ibn al-Muzaffar, al-Ghassani
الأشرف الغساني الملك، أبو حفص عمر بن الملك المظفر
A Yemeni ruler of the Rasulid line who wrote on the astrolabe, veterinary medicine and simple drugs, drawing on Ibn al-Baytar and al-Zahrawi.
At a glance
- Roles
- sultan · Scholar
- Counted among
- Sunni
- Era
- The Crusades, Ayyubids and Mamluks
- Region
- Arabia
- Review
- Draft Completeness 1/5 · Help complete it
MedicineAstronomy and timekeeping
Place in the story
- RulerTradition
Roles are dated and sourced; the museum describes the act and attributes the judgement.
Overview
Al-Ashraf Abu Hafs Umar ibn al-Malik al-Muzaffar al-Ghassani, a Yemeni king of the Rasulid dynasty. He wrote on the craft of the astrolabe, the science of veterinary medicine, the treatment of animals, and simple drugs 1.
His works
The encyclopedia reports that he benefited from Ibn al-Baytar and al-Zahrawi 1.
The entry needs an additional source: the data holds neither his year of birth nor his year of death.
People and things also explored
al-Tiflisi Jamal al-Din Abu al-Fadl Habash ibn Ibrahim· Qibla-finding by stars, winds, mountains and rivers· The seven climates· The earth's sphericity· The moon's night-litany· The planets' reign and the world's cycles· Abu al-Wafa' al-Buzjani, Muhammad ibn Muhammad· Al-Abhari, Athir al-Din al-Mufaddal ibn Umar
Sources
- Mawsu'at A'lam al-Ulama' wa-l-Adaba' al-Arab wa-l-Muslimin — Dar al-Jil / ALECSO, p.34-35
Cite this page
islam.museum contributors. “al-Ashraf Umar ibn al-Muzaffar, al-Ghassani”. islam.museum, https://islam.museum/en/person/umar-ibn-al-muzaffar-al-ashraf/. CC BY-SA 4.0. Accessed 2026-10-17.