When Akbar’s father died in 1556, he became the de jure ruler at the age of 13.
Bairam Khan was named regent and main army commander under Akbar.
In the Second Battle of Panipat, shortly after taking control, Akbar defeated Himu, the Afghan troops’ general.
After a few years, he abolished Bairam Khan’s regency and assumed control of the realm.
Final answer:
Hence, at the age of 13, Akbar became the emperor of the Mughal Empire.