Al-Mansur Umar
Al-Mansur Umar, born Umar ibn Ali ibn Rasul, founded the Rasulid Sultanate of Yemen. In 1229 the last Ayyubid prince entrusted him with the government of Yemen. He ruled at first in the Ayyubids' name, until the Abbasid caliph recognized him as sultan in 1235.
Coins were struck and Friday prayers said for him across Yemen. From Ta'izz he campaigned into the Hijaz, took Mecca and extended his sway to Hadhramaut. In 1249 he was killed by his mamluks at al-Janad and succeeded by his son Yusuf.