Lucion Title Gender Race Ethnicity Affiliation Class Occupation Relatives Status Appearances Lucion was the son of Mephisto (the Lord of Hatred) and a brother to Lilith, which goes by many names. In ages past, several hundreds of years before the events of Diablo I when Sanctuary was still a relatively young world, Lucion ruled the Triune in the guise of the Primus. As the leader of the Triune, Lucion fought a secretive and subtle war against the Cathedral of Light that would decide which of the two cults would eventually dominate the human race.