Warrior-priestess sister of the four Mama founders. Iconographically and functionally distinct from the other three Mamas: where Mama Ocllo is the Coya-queen and weaver, and Mama Cura/Raua are agricultural-domestic figures, Mama Huaco is the warrior-and-first-maize-sower. The Betanzos variant credits her — not Manco Cápac — with throwing the golden staff that selected the Cuzco site, repositioning the foundational cosmographic act onto the warrior-sister. This variant has been read by Silverblatt (Moon, Sun, and Witches: Gender Ideologies and Class in Inca and Colonial Peru, 1987) as preserving an older matrilineal substrate beneath the patrilineal imperial overlay; the Inca state-cult formalization in Garcilaso de-emphasized the warrior-sister credit, attributing the founding act to Manco Cápac, but the Betanzos preservation gives access to an alternative reading. Cultural ratification: her panaca (the Wikakirau Panaca per some sources) maintained cult through the conquest, and her first-maize-sowing field was an imperial-age agricultural huaca.