The titles of Ahpo Sotz'il and Ahpo Xahil were passed from father to son [REF].
When Iximche was founded in the late 15th century AD Wuqu-Batz' was Ahpo Sotz'il, Hun-Toh was Ahpo Xahil, Chuluk was K'alel Achi and Xitamel-Keh was Ahuchan [REF].