al-Hadra (Hatra)

Al-Hadr is a known fortress in the district of Ayajir, in the land of Mosul. It belonged to al-Satirun, son of Asitirun, king of the Syrians. Al-Mas'udi reports that poets mentioned it for the greatness of its kingdom and the fine quality of its building, among them Abu Dawud Jariya ibn Hajjaj al-Iyadi. ²

Al-Mas'udi reports that al-Dayzan ibn Jabhala ibn Mu'awiya of Tanukh ruled it after that. Shapur came down upon it with his troops, and it held out for a month, and he could find no way to take it, until the daughter of al-Dayzan, al-Nadiriyya, showed him its water source from the river al-Tharthar. He broke it down after killing al-Dayzan and those with him. ²