Arpa Ke'un's position proved to be weak; when a granddaughter of Chupan,
Delsad Katun, fled to
Diyarbakr, it caused the governor of that region to attack and defeat the Ilkhan. During the strife that occurred in the next few years, individual members of the Chobanids sided with various factions, such as Arpa or Hasan Buzurg. The latter ended up marrying Delsad Katun, who provided for the heirs to the Jalayirid position. '' 1330–1340, Isfahan While the Jalayirids were consolidating their position in
Iraq, however, other Chobanids were also busy.
Hasan Kucek, a grandson of Chupan, rallied much of the Chobanid family to his side and defeated the Jalayirids in 1338, paving the way for a Chobanid realm in the area around
Tabriz. That same year, he elevated
Sati Beg, sister of Abu Sa'id and widow of Chupan, to the Ilkhanid throne. To keep Sati Beg in check, he forced her to marry his puppet
Suleiman Khan. Hasan Kucek continued to fight the Jalayirids (a fight which was further complicated by the incursions made by
Togha Temur of
Khurasan), but family infighting proved to be the most difficult challenge. To the south,
Pir Husayn Chubani was designated as governor of the region of
Fars and
Isfahan regions from 1339 to 1342. The Chobanids firmly controlled Isfahan at that time, until the takeover of the city by the
Injuid Abu Ishaq Inju in 1342, who replaced the Chobanids in southern Iran with the rule of the
Injuids. Several members defected to the Jalayirids; in any case, Hasan Kucek was forced to deal with them up until his death in 1343. ==Malek Ashraf and the Chobanid decline==