https://iranicaonline.org/articles/bologan-katun-the-name-of-three-...

Arghun's favourite wife. Lived in Kelatkuh or Kala. (History of the Mongols from 9th to 19th century. Volume 3)

Boloḡān Ḵātūn “Moʿaẓẓama,” daughter of Ūtmān the son of Ūbetāy Nūyān the Qūnqūrāt was married by Arḡūn on 9 Rabīʿ I 689/22 March 1290, i.e., at Nowrūz and installed in the former ordū of Boloḡān Ḵātūn “Bozorg.” Arḡūn had a daughter by her, called Delānjī, who died in childhood. After Arḡūn’s death in 690/1291, his uncle Geyḵātū in turn married this Boloḡān Ḵātūn on his return from Alātāḡ in Šaʿbān, 691/July-August, 1292, and had a son by her called Čīnk Pūlād (also called Tīrī, according to Banākatī, p. 447). According to Rašīd-al-Dīn (ed. Jahn, 1940, p. 12), this marriage was against her wishes.

Though childless herself, she raised her step-grandsons (by Abagha's son Arghun)

Ghazan and Öljeitü

, both of whom later succeeded Arghun, and eventually converted to Islam. Arghun had Öljeitü baptized at birth, and gave him the name "Nicholas" after Pope Nicholas IV.

Boloḡān Ḵātūn “Moʿaẓẓama” played a prominent part in the civil war between Ḡāzān and Bāydū, during which Bāydū attempted to use her to restrain Ḡāzān but came to find her something of an embarrassment, since her loyalties and those of her supporters clearly lay with the latter (Rašīd-al-Dīn, ed. Jahn, 1940, pp. 62-64, 81; Banākatī, p. 455). On the successful outcome of this struggle one of Ḡāzān’s first acts was to “remarry” his father Arḡūn’s widow Boloḡān Ḵātūn in a Muslim ceremony near Tabrīz in Ḏu’l-ḥejja, 694/October, 1295, since they had both now adopted Islam. Ḡāzān had by her a son Oljū, who died in infancy, and a daughter, Oljāy Qotloḡ (also called Ūljākī), who married her nephew Besṭām (Kāšānī, p. 82) and later his younger brother Abū Saʿīd on (or before) his accession to the throne in 717/1317, becoming his chief and most beloved wife (Banākatī, p. 478; Samarqandī, p. 20).

https://en.wikipedia.org/wiki/Nawr%C5%ABz_(Mongol_emir)

[... Using this opportunity Ghazan started a purge against Nawruz and his followers in May 1297. His brother Hajji Narin and his follower Satalmish were executed along with Nawruz's children in Hamadan, his other brother Lagzi Güregen was also put to death in Iraq on 2 April 1297. His 12-year-old son Toghai was spared due to the efforts of Bulughan Khatun Khurasani, Ghazan's wife Arghun Aqa's granddaughter and given to the household of Amir Husayn. Others spared were his brother Yol Qutluq and his nephew Kuchluk.]

اولوق (معظمه) بولوقان خاتین، دختر اوتمان پسر اوبتای نویان قونقورات، همسر ارغون و غازان خان ایلخانی است... https://rasekhoon.net/article/show/1395326/%D8%A8%D9%84%D8%BA%D8%A7...

ولوق (معظمه) بولوقان خاتین، دختر اوتمان پسر اوبتای نویان قونقورات، همسر ارغون و غازان خان ایلخانی است.