.His father's name was Abu Talib
Abu Talib ibn ‘Abd al-Muttalib
Abi Tlib ibn ‘Abd al-Muttalib also known as Abu Talib ibn al-Muttalib.Talib was in reality the elder son of Abd Munāf and elder brother to Ali Ibn Abd Munāf. He was an head of Bani Hashim clan of Quraysh tribe of Mecca in Arabia. He was married to Fatima bint Asad and was an uncle of the...

. Ali was also the cousin and son-in-law of the Islamic prophet
Prophets of Islam
Muslims identify the Prophets of Islam as those humans chosen by God and given revelation to deliver to mankind. Muslims believe that every prophet was given a belief to worship God and their respective followers believed it as well...

Muhammad |ligature]] at U+FDF4 ;Arabic pronunciation varies regionally; the first vowel ranges from ~~; the second and the last vowel: ~~~. There are dialects which have no stress. In Egypt, it is pronounced not in religious contexts...

, and ruled over the Islamic Caliphate
Rashidun Caliphate
The Rashidun Caliphate , comprising the first four caliphs in Islam's history, was founded after Muhammad's death in 632, Year 10 A.H.. At its height, the Caliphate extended from the Arabian Peninsula, to the Levant, Caucasus and North Africa in the west, to the Iranian highlands and Central Asia...

 from 656 to 661, and was the first male convert to Islam. Sunni
Sunni Islam
Sunni Islam is the largest branch of Islam. Sunni Muslims are referred to in Arabic as ʾAhl ūs-Sunnah wa āl-Ǧamāʿah or ʾAhl ūs-Sunnah for short; in English, they are known as Sunni Muslims, Sunnis or Sunnites....

 Muslims consider Ali the fourth and final of the Rashidun
The Rightly Guided Caliphs or The Righteous Caliphs is a term used in Sunni Islam to refer to the first four Caliphs who established the Rashidun Caliphate. The concept of "Rightly Guided Caliphs" originated with the Abbasid Dynasty...

(rightly guided Caliph
The Caliph is the head of state in a Caliphate, and the title for the ruler of the Islamic Ummah, an Islamic community ruled by the Shari'ah. It is a transcribed version of the Arabic word   which means "successor" or "representative"...

s), while Shi'a Muslims regard Ali as the first Imam and consider him and his descendants the rightful successors to Muhammad
Succession to Muhammad
The Succession to Muhammad concerns the various aspects of successorship of Muhammad after his death, comprising who might be considered as his successor to lead the Muslims, how that person should be elected, the conditions of legitimacy, and the role of successor...

, all of which are members of the Ahl al-Bayt
Ahl al-Bayt
Ahl al-Bayt is an Arabic phrase literally meaning People of the House, or family of the House. The phrase "ahl al-bayt" was used in Arabia before the advent of Islam to refer to one's clan, and would be adopted by the ruling family of a tribe. Within the Islamic tradition, the term refers to the...

, the household of Muhammad.