 In AD 724 Uaxaclajuun Ub'aah K'awiil installed K'ak' Tiliw Chan Yopaat as a vassal on the throne of Quiriguá.Uaxaclajuun Ub'aah K'awiil was confident enough in his power to rank his city among the four most powerful states in the Maya region, together with Tikal, Calakmul and Palenque, as recorded on Stela A.In contrast to his predecessor, Uaxaclajuun Ub'aah K'awiil concentrated his monuments in the site core of the Copán; his first was Stela J, dated to AD 702 and erected at the eastern entrance to the city.