Tehuantepec

Tehuantepec was a trading centre on the Pacific side of the isthmus of the same name. Before the Zapotec expansion, the region was inhabited by the Huave.

From 1487 Cosijoeza of Zaachila expanded into the area and made Tehuantepec a second capital. In the 1490s his fortified city of Guiengola withstood a seven-month Aztec siege, followed by his marriage to Ahuitzotl's daughter. Their son Cosijopii allied with Pedro de Alvarado, accepted baptism and built the Santo Domingo convent between 1543 and 1555 under Spanish rule.