Chupan Amir Chupan , also known as Choban or Coban ( امیر چوپان سلدوز ) , ( d . November 1327 ) , was a Chupanid noble of the Ilkhanate , and nominal general of the Mongol Empire . His father was named the Malek of the Mongol Suldus clan . His ancestor was Chilaun ( Чулуун ) , who was one of Chingis Khan ' s four great companions . Rise to Power . Amir Chupan was first mentioned as a supporter of Gaykhatu during the latter ' s successful campaign for the Ilkhan id throne . During Ghazan ' s fight with Baydu for the throne in 1295 , Chupan met with him near the Ustunavand castle . Chupan served under Ghazan , participating in the campaign against the rebel Nauruz . He acted as a senior commander during Ghazan ' s three campaigns against Syria , then under the rule of the Mamelukes . During one of these campaigns , Chupan ' s army , under the command of Ghazan ' s chief military officer Qutlugh Shah , was defeated by the Mamelukes in the battle of Marj al - Saffar ( 1303 ) . When Qutlugh Shah fled , Chupan stayed with the army , and reached Ghazan in June . Ghazan , furious at the defeat , punished both Qutlugh Shah and Chupan , though the latter was dealt with more leniently . In 1305 Chupan married the daughter of Ghazan ' s successor Öljeitü , Dowlandi Katun . In 1307 he was given command of one of four armies assigned to quell the rebellious province of Gilan . Marching from Ardabil , he convinced the rulers of Astara and Gaskar to surrender peacefully , and then met up with Öljeitü . Qutlugh Shah ' s army , however , did not fare so well , and he was killed by the Gilakis . Following his death , Öljeitü made Chupan his chief military commander or Amir of the Ulus ( nation ) . Chupan was now a major influence behind the throne , though he had to contend with the court viziers . When Öljeitü died in 1316 , his son Abu Sa ' id confirmed Chupan ' s status as Amir of the Ulus , despite attempts by the Amir Sevinch to gain the position for himself . Height and Fall Under Abu Sa ' id . Chupan attempted to neutralize the influence of the viziers . In 1318 , he convinced the discredited former vizier Rashid - al - Din Hamadani to return to the Ilkhanid court . Rashid , who had many enemies , was accused of poisoning Öljeitü soon after he returned . Chupan promptly turned on him , and Rashid - al - Din was put to death in July of that year . In 1319 , armies under the command of the khan of the Blue Horde , Öz - Beg , invaded the Ilkhanate . Abu Sa ' id led a campaign to stop the invasion . Chupan was on his way to assist Amir Husain ( the father of the founder of the Jalayirids , Hasan Buzurg ) against the raids of the Chagatai prince Yasa ' ur , who was devastating Khurasan , but then turned around to support Abu Sa ' id upon receiving word that the latter ' s position across the Kur River was in danger . Several of Abu Sa ' id ' s officers had deserted , leaving his army weakened . He rushed to his master ' s position , only to find the troops of the Blue Horde already in flight . Nevertheless , Chupan inflicted heavy casualties upon the enemy . The matter of Abu Sa ' id ' s officers fleeing still needed to be addressed . When the amir enacted punishment against Qurumshi ( also a potential rival ) , as well as several other officers , for their military negligence , a conspiracy was then launched against him . The conspirators included Abu Sa ' id ' s uncle Irenjin , who Chupan had dismissed from the governorship of Diyarbakr . With the full support of the Ilkhan , Chupan dealt with them . Irenjin was defeated near Mianeh in June 1319 . Following these events , Chupan gained almost complete influence over the Ilkhan , and his sons gained prominent positions as the Ilkhanate was parceled out between them . He also married Abu Sa ' id ' s sister Sati Beg , whom he had been betrothed to since 1316 . His sons quickly took advantage of their power ; during the winter of 1322 Chupan , who was suffering from gout , had to convince his son Timurtash , governor of Rum , to end his rebellion against the Ilkhanate . As Chupan had reached the height of his power , he had also sown the seeds of his fall . While Abu Sa ' id lacked a treasury , Chupan ' s son and administrative representative Demasq Kaja spent his wealth extravagantly . This situation annoyed the Ilkhan , who was further influenced against him by his viziers , particularly Rukn al - Din Sa ' in , Chupan ' s own protégé . Chupan ' s efforts to keep Abu Sa ' id from marrying his daughter Bagdad Katun , who was already married to Hasan Buzurg , did not help the situation . In 1325 Chupan defeated another force led by Öz - Beg , and even invaded the Blue Horde . Early in 1326 , Chupan led an army to defend against an imminent invasion of Khurasan . By the request of Abu Said , the Khagan Yesün Temür awarded his custodian Chupan the nominal title of a chief - commander of all Mongol Khanates . In the autumn of that year , the Chagatai Khan Tarmashirin crossed the Oxus River , and was defeated by Chupan ' s son Hasan near Ghazna . The vizier Rukn al - Din Sa ' in had traveled with Chupan , leaving Demasq Kaja in effective control at the Ilkhanid court . It was at this time that Abu Sa ' id decided to make his move . In August 1327 Abu Sa ' id had Demasq Kaja killed , ostensibly for the latter ' s activities with a former concubine of Öljeitü ' s . Abu Sa ' id then undertook a campaign against the other Chupanids . The Khurasanis gained word of the plot , but pretended to act friendly toward Chupan . The latter marched west ; on his way , he convinced the local religious leader of Simnan , Shaikh ' Ala ' al - Daula , to try to negotiate a truce , and then camped near Qazvin . When the shaikh failed , he continued west , with his troops pillaging on the way . Upon reaching Quha , he was a day ' s journey away from Abu Sa ' id ' s camp , but as night fell , most of his army deserted him for the Ilkhan . Instead of facing the Ilkhanid army , he withdrew . Upon reaching Saveh , he sent his wife Sati Beg back to Abu Sa ' id . He then traveled in the direction of Tabas , with the intention of finding refuge in Transoxiana . Upon reaching the Murghab River , he changed his mind and headed for Khurasan . He was given a friendly welcome into Herat by the local Kartid ruler , Ghiyath ud - Din . However , when he received an order by the Ilkhan , his master , to execute Chupan , Ghiyath had no choice but to obey . Chupan and his son Jela ' u Khan were both killed . As Chupan ' s friend , Ghiyath ordered that he be killed by strangulation , which was considered an honorable way to die . The Kartid leader then sent one of Chupan ' s fingers to Abu Sa ' id as proof of the deed . Many of Chupan ' s sons were to also die in the next few years . He was buried in Medina , in the cemetery of Baqi , under the supervision of his daughter Bagdad Katun . By Dowlandi Katun : By Korducin ( probably second wife ) : By Sati Beg :