Families known as First families held governing power over Twi'lek colony worlds throughout the High Republic Era. A notable example is Lourna Dee's family, who were a First family residing on the planet Aaloth.
The audio drama The High Republic: Tempest Runner, which was released in 2021 and authored by Cavan Scott, featured a First family in flashback sequences; the drama was performed by a complete cast of voice actors.