’Arif ibn Umar

'Arif ibn Umar ibn Muhammad ibn Mansur ibn Hussein al-Burzandi (later, Martin de Manzor; 1150-1125) was an Arab nobleman and the son of Emir Umar. He was given a choice to convert or to be executed by the King of Aragon, and he chose to convert. However, recent research supports the fact that he could have been a Crypto-Muslim.

Early Life
He was the son of Emir of Burzand, Umar ibn Muhammad and a Byzantine noblewoman, Ushaana at-Tizmishqiyyah. He had a twin brother Usmân ibn Umar, who later escaped to Gezir.

Biography
Little is known of his life, but he is said to be the progenitor of the Christian Manzor family.