Martyr Ghahreman Mansoubi, known as Mashhadi Heydar, was born on May 22, 1944, in Rey County. His father was Yahya and his mother was Tavoos. He studied up to middle school. He worked as a pot-seller for some time and then worked as a motorcycle mechanic in Salmas.
Due to his revolutionary activities, he was imprisoned for some time by the Pahlavi regime. After marriage, he had three sons and one daughter. He served at the warfront as a Basij member.
He was ultimately captured by elements of the Democratic Party of Iranian Kurdistan terrorist group while traveling on the Urmia-Salmas road and, after several days of torture, was martyred in a horrific manner on September 1, 1983.
His son, Javad, was also martyred in February 1983 on the Fakkeh front.