But because Ferzende rejected it, the armed conflict broke out between Kurdish and Iranian forces.
In this conflict Şemseddin, who is one of the sons of Halid of Hesenan, Ferzende's father Suleiman Ahmed, Kerem of Zirkan, Abdulbaki and others were killed by the Iranian force.
[8] On 25 July, during the fighting in the vicinity of Qara Aineh, Persian Colonel Kalb Ali Khan was killed in action and Kurds lost three or four important leaders, including Ibrahim and his brother.
In 1941, Osman Sabri wrote that Ferzende had been killed by poison in the prison at Khoy two years before.
[10] According to Zarife, who is the second wife of Nadir Süphandağ (one of the sons of Kor Hussein Pascha) and lived with Ferzende's wife Besra in the same house in Tehran for four years, Ferzende died in the Qasr-e Qajar Prison before they returned to Turkey in 1939.