Cosijopii I also Cosiiopii I (December 30, 1502–1563)[1] was the last sovereign of the Kingdom of Zaachila, that was named by the Aztecs as Teotzapotlan.
Cosijopii was the son of Cosijoeza, Zapoteca king, and Coyolicaltzin, daughter of Aztec tlatoani Ahuízotl.
Cosijopii moved his capital from Zaachila city to Guiengola at some point in the mid-sixteenth century.
He formed an alliance with the Spanish, commanded by Pedro de Alvarado when he arrived in Tehuantepec, and together they fought the Mixtecos.
[1] Between 1543 and 1555 Don Juan Cortés Sicasibí built the Convent of Santo Domingo in Tehuantepec.