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
Kublai Khan Then he married Chabi of the Khongirad, who was his most beloved empress. After Chabi's death in 1281, Kublai married Chabi's young cousin, Nambui, presumably in accordance with Chabi's wish. Kublai and his wives' children included: Kublai's seizure of power in 1260 pushed the Mongol Empire into a new direction. Despite his controversial election, which accelerated the disunity of the Mongols, Kublai's willingness to formalize the Mongol realm's symbiotic relation with China brought the Mongol Empire to international attention. Kublai and his predecessors' conquests were largely responsible for re-creating a unified, militarily powerful China. The Mongol rule of Tibet, Manchuria,