Umar ibn Ibrahim ibn Waqid al-Umari

Umar ibn Ibrahim ibn Waqid al-Umari (Arabic: عمر بن إبراهيم بن واقد العمري) was a ninth-century governor of the Yemen for the Abbasid Caliphate. A descendant of the second Rashidun caliph Umar ibn al-Khattab, Umar was appointed as governor shortly after the death of the caliph al-Amin in 813.

Source: Wikipedia — Umar ibn Ibrahim ibn Waqid al-Umari (CC BY-SA 4.0)