In 2268, this was Cosalthan II, who married Dohlman Elaan of Elas. The two then ruled both of their worlds jointly (ST reference: Star Trek Maps, FASA RPG module: The Orions: Book of Common Knowledge).
- The sources disagree on the title of the leader of Troyius. The ST reference: Star Trek Maps says Elaan married "the Troyian Prefect", while the Decipher RPG module: Worlds has her marry "the Principus of Troyius". However, the FASA RPG module: The Federation says she married "the son of Troyius's current ruler", suggesting one of these alternative titles could be a lesser, prince-like position.