Ghiyas-ud-din Baraq

Baraq, who on converting to Islam took the name Ghiyas-ud-din, was a great-grandson of Chagatai Khan and the father of Duwa. Raised at Kublai Khan's court, he seized the Chagatai throne by deposing Mubarak Shah in September 1266 and soon rejected Kublai's overlordship.

He defeated Kaidu but lost near Khujand, then made peace at Talas in 1269, receiving two-thirds of Transoxiana. Invading the Ilkhanate, he won in Khurasan but was routed by Abaqa near Herat on 22 July 1270. He died at Bukhara on 9 August 1271.