His son and successor Khabul Khan was the founder of the Khamag Mongol after his death.
Tumbinai was the ancestor of two great lineages: firstly through his eldest son Khabul's great-grandson Genghis Khan, who was the founder of the Mongol Empire, one of the largest empires in the world, which ruled most of the Asian continent and large parts of Europe.
The Liao dynasty of China always threatened the Mongols, so he paid tribute to the emperor.
[6][2][3] He was the great-great-great-great-grandson of Bodonchar Munkhag, who made the foundation of the Borjigin clan and lived in the 10th century.
Tumbinai was a great-great-grandfather of Genghis Khan, founder of the Mongol empire,[2][3] through his eldest son Khabul Khan and the great-great-great-great-great-great-grandfather of Amir Timur, who was the founder of the Timurid empire at Central Asia, through his second son Khaduli and then his great-grandson Qarachar Barlas, who created the Barlas confederacy clan.