Elbeg Nigülesügchi Khan

Nigülesügchi Khan, born Elbeg (1360–1399), was a khagan of the Northern Yuan dynasty, reigning from 1394 to 1399. Erdeniin Tobchi claimed that Elbeg was the younger brother of the Jorightu Khan, while other historians testify that he was a son of the Biligtü Khan (Emperor Zhaozong).

To prevent hostilities from the Khuuhai Dayuu's family, he gave his daughter Samur Gunj in marriage to the Khuuhai Dayuu's son Batula.

Ugetchi Khashikha, who was ruler of the Oirads at the time, resisted the Khagan's decision to appoint a new ruler over his tribes. He persuaded Batula that the violent khan who had killed his own kin was not fit to be Emperor. Batula wanted to avenge the death of his father as well.

In 1399 Elbeg Nigülesügchi Khagan was defeated by the Four Oirats and was killed by their leaders, Ugetchi Khashikha and Batula, as a result. According to Saghang Sechen, his crown was succeeded by Gün Temür Khan after his death. Allied with the late khan's principal consort Kobeguntai, who was jealous of Elbeg's issue with Oljeitu, Ugetchi Khashikha seized his harem and all his properties.

Issue Kobeguntai Khatun (庫伯袞岱哈屯) Princess Samur (萨穆尔公主, d.1455), 1st daughter Married Mahamu, Prince Shunning (顺宁王 马哈木) of the Oirat Chuoluosi clan 绰罗斯氏) and had issue (one son) Concubine Oljeitu (鄂勒哲依圖鴻郭斡妣吉), widow of his brother Crown prince Duurentemur (都令帖木儿太子), 1st son Ajai (阿寨) Taisun khan Agbarjin Manduul khan Unknown Bunayashiri (本雅失里), 2nd son, laterally Öljei Temür Khagan Gün Temür Khan (disputed)