Bairam Khan

Bairam Khan also Bayram Khan was an important military commander, later commander in chief of the Mughal army, a powerful statesman and regent at the court of the Mughal emperors Humayun and Akbar, also guardian, chief mentor, advisor, teacher and most trusted person of Humayun. Humayun honored him as Khan Khanan, which means king of kings. Bairam was originally called Bairam Beg but later, however, becoming honored as Kha or Khan.

Bairam Khan was born in presentday Afghanistan, and belonged to the Baharlu clan of the Turkmen Kara Koyunlu tribe. The Kara Koyunlu had ruled Western Persia for decades before being overthrown by their Ak Koyunlu rivals. Bairam Khans father and grandfather had taken part in Baburs service.

Source: Wikipedia