The Massacre of the Sith Council was the opening engagement of the Successors War in 121 ABY. It saw the deaths of seven of the Councils ten members. In early 121 ABY, Darth Abeonis announced to the Sith Council that he would shortly be announcing who was to be his successor. Two days later, he passed away; having announced no-one as his successor. With no heir declared, it was only a matter of hours before tensions amongst the Sith reached breaking point. A Sith Lord named Darth Proditor took it upon himself to decide an heir and usurped the throne for himself. Many on the Sith Council saw this act as treason and prepared to remove the usurper, but before they could act Proditor and his apprentice Darth Setil struck at the Sith Council, killing seven of the nine present and convincing Dar