The Ancient Houses, alternatively referred to as the Senex Houses, comprised a select few long-standing Human family lines who possessed dominion over planetary territories and interstellar lordships. While the designation could occasionally encompass other families possessing similar age and power—for instance, House Organa of Alderaan—the phrase primarily denoted the leading bloodlines originating from the Senex-Juvex sectors, including entities like House Vandron and House Elegin.