Cosijopii I also Cosiiopii I was the last sovereign of the Kingdom of Zaachila, that was named by the Aztecs as Teotzapotlan. Such kingdom was located in the west side of the current Mexican state of Oaxaca and during the last period reached the Pacific coast of the current Chiapas and Guatemala, the Zaachila Kingdom fell after the Spanish colonization. Cosijopii was the son of Cosijoeza, Zapoteca king, and Coyolicaltzin, daughter of Aztec tlatoani Ahuízotl. His siblings were Bitoopa, Natipa, Pinopia, Cosijopi, and Donají.