 At the time of Spanish contact the Yalain were allied with the Itza, an alliance cemented by intermarriage between the elites of both groups.In the late 17th century, Spanish colonial records document hostilities between Maya groups in the lakes region, with the incursion of the Kowoj into former Yalain sites including Zacpeten on Lake Macanché and Ixlu on Lake Salpetén.Other groups in Petén are less well known, and their precise territorial extent and political makeup remains obscure; among them were the Chinamita, the Icaiche, the Kejache, the Lakandon Chʼol, the Manche Chʼol, and the Mopan.