Darth Messor was a human male Sith Lord, living around 174 ABY. Originally a member of the One Sith Order, he was baited by Darth Wyyrlok IV to defect with two others and created the Tripartite Empire. He fought valiantly during the ensuing conflict between the Empire and the Galactic Federation Triumvirate, not knowing he was played. He was the only one of the three Sith survive the war, and later accepted a deal from Emperor Suvorov Palpatine to join the New Dark Empire which he created after years of under cover work in the Federation.