Saddam Hussein's cousin Ali Hassan al-Majid, will be executed in coming days.
This is according to an Iraqi government spokeperson.
Al Majid, commonly known as chemical Ali, was earlier convicted of his role in the killings of thousands of Kurds in the 1980s.
Sultan Hashim Ahmad al-Tai, the former defence minister, and Hussein Rashid Mohammed, former deputy operations director, were also sentenced to death for their part in the campaign.
All three were convicted of genocide, war crimes and crimes against humanity in June.