With Muhammad's death in 632, rivalry emerged between the Quraysh and the two other components of the Muslim elite, the Ansar and the Thaqif, over influence in state matters. The Ansar wanted one of their own to succeed the prophet as caliph, but were persuaded by Umar to agree to Abu Bakr. During the reigns of Abu Bakr (632–634) and Umar (r. 634–644), some of the Ansar were concerned about their political stake. The Quraysh apparently held real power during this period marked by the early Muslim conquests. During the First Muslim Civil War, the Ansar, who backed Caliph Ali of the Banu Hashim against two factions representing rival Qurayshi clans, were defeated. They were subsequently left out of the political elite, while the Thaqif maintained a measure of influence by dint of their long relationship with the Quraysh.