Mulan Khan was the Mongol Khan

Khan (title)

Khan is an originally Altaic and subsequently Central Asian title for a sovereign or military ruler, widely used by medieval nomadic Turko-Mongol tribes living to the north of China. 'Khan' is also seen as a title in the Xianbei confederation for their chief between 283 and 289...

 of the Northern Yuan Dynasty in Mongolia

Mongolia

Mongolia is a landlocked country in East and Central Asia. It is bordered by Russia to the north and China to the south, east and west. Although Mongolia does not share a border with Kazakhstan, its western-most point is only from Kazakhstan's eastern tip. Ulan Bator, the capital and largest...

 and he was the eldest son of Tayisung Khan Toghtoa Bukha). Mulan Khan succeeded his younger brother Markörgis Khan

Markörgis Khan

Markörgis was a Mongol Khan of the Northern Yuan Dynasty in Mongolia. Some scholars believe his name is Christian name....

 in 1465 and it was prophesied "By you the great people will regain strength in legal order. Ascend to throne as Khaan". But he met the same fate like his younger brother: due to lack of real power, he was killed by warring Mongol nobles who fought each other for dominance. After his death, the position of great khan remain vacant for nearly a decade as warring Mongol clans fought each other for power, and it was not until finally in 1475, when Manduulun Khan

Manduulun Khan

Manduul Khan , was the Mongol Khan of the Northern Yuan Dynasty in Mongolia, and he was the younger brother of Tayisung Khan, Emperor Taizong of Northern Yuan , but the two had different mothers.After the death of Mulan Khan, the position remain vacant for nearly a decade as warring Mongol clans...

(Manduyul) was finally crowned as the next khan.