Ali

Ali ibn Abi Talib was the cousin and soninlaw of the Islamic prophet Muhammad, ruling over the Islamic caliphate from 656 to 661.

Born to Abu Talib and Fatima bint Asad, Ali was the only person born in the sacred sanctuary of the Kaaba in Mecca, the holiest place in Islam, as many sources, especially Shia ones say. Ali was the first young male who accepted Islam. After migrating to Medina, he married Muhammads daughter Fatimah. Ali took part in the early caravan raids from Mecca and later in almost all the battles fought by the nascent Muslim community. He was appointed caliph by Muhammads Companions in 656, after caliph Uthman ibn Affan was assassinated. Alis reign saw civil unrest and in 661, he was attacked and assassinated by a Kharijite while praying in the Great Mosque of Kufa, dying two days later.

Source: Wikipedia