'Eternal Iron', ᠮᠦᠨᠺᠬᠲᠡᠮᠦᠷ; Chinese: 蒙哥帖木兒), also known as Tash Möngke,[1][2] was one of the sons of il-khan Hulagu.
Rashid al-Din gives detailed account of his birth on Jami' al-Tawarikh - he was born to Hulagu and his Oirat wife Öljei on 23 October 1256 at night.
[3] He was appointed by his brother Abaqa to organize defense lines on Caucasus against Golden Horde at the start of his career in 1266.
Later he moved on to the Egyptian border, heading a 50,000 strong army towards Mamluk sultan Qalawun in 1281.
[4] His main supporters for throne were his mother Öljei and his Oirat kinsmen after Abaqa's death.