The Cheen-Thitar Keep is the home of the Cheen and Thitar clans of Andorians, found in the province of Thelasa-vei in the Southern Archipelago of Andor. Sessethantis zh'Cheen and Shathrissia zh'Cheen were both members of the clan of Cheen. (DS9 - Worlds of Star Trek: Deep Space Nine novel: Andor: Paradigm)