Topa Inca Yupanqui or Túpac Inca Yupanqui (Cusco Quechua: Thupa Inka Yupanki, pronounced [ˈtʰupa ˈiŋka juˈpaŋki]), also Topa Inga Yupangui, erroneously translated as "noble Inca accountant" (before 1471 – 1493) was the tenth Sapa Inca (1471–1493) of the Inca Empire, fifth of the Hanan dynasty. His father was Pachacuti, and his son was Huayna Capac. Topa Inca belonged to the Qhapaq Panaca (one of the clans of Inca nobles). His quya (principal wife) was his older sister, Mama Ocllo.