context: Sultan Muhammad Ozbek, known as Uzbek Khan (1282 - 1341), his reign lasted from 1313 to 1341, which was the longest period of rule for the Khans of the Golden Tribe, which culminated in his reign. He was succeeded by his son Jani Page.
question: Who is Uzbek Khan?
answers.text: his reign lasted from 1313 to 1341, which was the longest period of rule for the Khans of the Golden Tribe