English: This was a large center, important throughout the Classic era. It dominated smaller sites as Bonampak, and was long allied with Piedras Negras and at least for a time with Tikal; it was a rival of Palenque, with which Yaxchilan warred in 654 AD. Yat-Balam, founder of a long dynasty, took the throne on 2 August, 320 AD. The city-state grew to a regional capital and the dynasty lasted into the early 9th century. Yaxchilan had its greatest power during the reign of King Shield Jaguar II, who died in his 90s in 742 AD.