Nayan (Mongol Prince) 'Prince of Kwang-ning'. In addition, Nayan was also the foremost leader of the Eastern "ulus"es (tribal groupings and districts ruled by Mongol appanage princes) dominated by the descendants of the brothers of Genghis Khan. Whatever the precise extent of Nayan's appanage, he certainly held sufficient lands within and around Manchuria to give him a power-base from which to launch a rebellion against his kinsman Kublai Khan. Nayan is represented as embodying a traditional Mongol reaction against the increasing sinicisation shown by Kublai Khan and his administration. Nayan adhered to the ancestral nomadic values of the Mongols and was dismayed at
Mongol invasions of Georgia the Golden Horde and Hulagu Khan of the Ilkhanate. Part of the larger Toluid Civil War succession conflict between Kubilai and Ariq Böke, the war consisted mainly of raids and invasions carried out by both sides throughout the Caucasus region, with Berke enlisting the aid of the Mamluk Sultanate and Hulagu the aid of the Byzantine Empire. Neither side gained a real advantage, and the conflict ceased after the victory of Kublai and his enthronement as Great Khan. Mongol rule in the Caucasus lasted until the late 1330s. Greater Armenia stayed under Mongol lordship from 1220 to 1344. During that