The Kingdom of Nicoya (from Nahuatl: Nekok Yaotl), also called Cacicazgo or Lordship of Nicoya, was an indigenous nation that comprised much of the territory of the current Guanacaste Province, in the North Pacific of Costa Rica. Its political, economic and religious center was the city of Nicoya, located on the peninsula of the same name, which depends on several provinces located on both banks of the Gulf of Nicoya, as well as numerous tributary villages. In the 16th century, prior to the arrival of Europeans, Nicoya was the most important chiefdom of the North Pacific of present-day Costa Rica.[1]