Father of the Hero Twins; husband of Xbaquiyalo (first wife, mother of Hun Batz and Hun Chuen) and posthumous lover of Xquic (mother of Hunahpu and Xbalanque). Decapitated by the Xibalba lords; his severed head, placed in a calabash tree at the crossroads, spat saliva into Xquic's palm and impregnated her with the Hero Twins. The genealogical hinge of the Popol Vuh: the Twins' eventual defeat of Xibalba is in direct vengeance for their father's and uncle's execution. Iconographically the Classic-period Maize God Hun Nal Ye ("One Maize Revealed") is the unambiguous reflex; this identification, established by Schellhas's typology (God E) and confirmed through Tikal Burial 116 royal-as-maize-god regalia and the Resurrection Plate K1892, places Hun Hunahpu at the center of Classic Maya royal theology: the king IS the Maize God resurrecting from the underworld each agricultural season. The K'iche' royal lineages (Cawek, Nihaib, Ahau-Quiché) trace dynastic descent through this figure. Tikal Stela 31 (445 CE) shows King Siyaj Chan K'awiil II in maize-god regalia holding the heads of his ancestors; the Pakal sarcophagus lid at Palenque (683 CE) shows the king as Maize God descending into and rising from the World Tree-as-maize-stalk. The Hun Hunahpu / Maize God identification is among the most over-attested theological-iconographic equations in the entire pre-Columbian record.