Barzani was known to be the peacemaker figure among the Kurdish parties after the 1975 Algiers Agreement between Shah Pahlavi and Saddam Hussein which led to the Collapse of the Peace Accord.
Idris was born in 1944 in Barzan, a village in Iraqi Kurdistan, he moved to Mahabad with his father, family and thousands of peshmergas to join the newly established Republic of Mahabad which lasted only 11 months, afterward Barzani moved back to Barzan while his father Mullah Mustafa and 500 of his followers went to Soviet Union; refusing to surrender to the neighbouring regimes who oppressed the Kurdish people.
On 10 March 1970, the Iraqi regime then finally reached an agreement with the Kurds for the creation of an autonomous region in Northern Iraq.
Idris Barzani suddenly died with a heart attack on 31 January 1987, he was buried in Iranian Kurdistan in Oshnavieh.
In October 1993, his body was brought across the border from Iran to Iraqi Kurdistan to be reburied in Barzan.