Al-Sultan ud-din/ Janibeq (in Uighur)/ Jalal-ud-din Mahmud/Sultan // Zarb Sarai al-Jadid, 743 in a number of lines. Dated to 743 AH/1342 AD). 16mm, 1.47 grams. Mint of Sarai al-Jadid. Sagdeeva #217.

Khan Jani Beq ruled the Golden Horde from 1342 to 1357 and is remembered as a strong and ambitious leader during the later period of Mongol rule in the western steppes. The son of the powerful Khan Uzbek, Jani Beq continued his father’s policy of promoting Islam as the state religion and worked to consolidate central authority. He engaged in campaigns to maintain control over rebellious territories and expanded influence into regions like the Caucasus. Known for his autocratic rule, he is also remembered - according to some accounts- for allegedly murdering his own father and brother to secure power. His death in 1357 triggered a period of rapid decline and internal strife in the Golden Horde, marking the beginning of its fragmentation.