 It encloses the south side of the Court of the Hieroglyphic Stairway and is accessed from it by a wide monumental stairway.This structure appears to have been the royal palace of Yax Pasaj Chan Yopaat, the 16th ruler in the dynastic succession and the last known king of Copán.Structure 10L-11 was built on top of several earlier structures, one of which probably contains the tomb of his predecessor K'ak' Yipyaj Chan K'awiil.