Mama Quilla (Quechua mama killa lit. "Mother Moon",[1] Hispanicized spelling Mama Quilla), in Inca mythology and religion, was the third power and goddess of the moon. She was the older sister and wife of Inti, daughter of Viracocha and mother of Manco Cápac and Mama Uqllu (Mama Ocllo), mythical founders of the Inca empire and culture. She was the goddess of marriage and the menstrual cycle, and considered a defender of women. She was also important for the Inca calendar.
Myths surrounding Mama Quilla include that she cried tears of silver and that lunar eclipses were caused when she was being attacked by an animal. She was envisaged in the form of a beautiful woman and her temples were served by dedicated priestesses.
It is possible that word quilla is a borrowing from Puquina language explaining thus why genetically unrelated languages such as Quechua, Aymara and Mapuche have similar words for the Moon.[2] Similitudes are not only linguistic but also symbolical as in Mapuche and Central Andean cosmology the Moon (Quilla/Cuyen) and the Sun (Inti/Antu) are spouses.[3]