Umar ibn Hafsun was born in 850.
Umar ibn Hafsun died in 918.
Umar Ibn Abi Rabi'ah was born in 644.
Al-Qadi Aqib ibn Mahmud ibn Umar was born in 1556.
Mustafa Ibn Umar El-Kanemi of Borno was born in 1924.
Sa ad Ibraham Sa ad Al Bidna was born in 1978.
Abubakar Ibn Umar Garbai El-Kanemi of Borno was born in 1957.
Umar Ibn al Kattab was born in Mecca which is in kingdom Saudi Arabia now with the same name.
Yahya ibn Idris ibn Umar died in 917.
Yahya ibn Umar died in 864.
Sayf ibn Umar died in 796.
Ali ibn Umar died in 883.
Al-Qadi Aqib ibn Mahmud ibn Umar died in 1627.