sentences:  By the 7th century AD Tamarindito was the capital of the Petexbatún region, with a secondary capital at Arroyo de Piedra, but it was displaced when the great city of Tikal established of a new centre at Dos Pilas in order to exert control over the important Pasión River trade route.In the Late Classic Tamarindito experienced a notable growth in population and the city reached its maximum population in the 8th century AD, together with the neighbouring sites of Dos Pilas and Aguateca.King Chanal Balam was enthroned in 760 and on 26 January 761 Tamarindito defeated the city of Dos Pilas, and Chanal Balam either captured K'awiil Chan K'inich, the last king of Dos Pilas, or sent him into exile.