Ussej Padric Bac II was born to a long line of legendary war heroes, politicians, Jedi Knights and Sith Lords. His ancestor, Jonathan Bac, was the first Supreme Chancellor of the Galactic Republic. His grandfather and great-grandfather were both Senators of Alderaan. His parents were Laili Jeyna Rendar, the sister of his uncle Kit Corwin Rendar, and Saint Ussej Padric Bac who went on to become the Shaman of the Whills. His mother and uncle originated from Corellia. His wife, Bara ErMez, would eventually give birth to a son named Ussej Padric Bac III, a legendary Bendu High Priest that brought about the Holy War during the Great Sovereign Crusades.