Codex Mendoza, p. 69r.
Moctezuma sits on his royal mat in his palace (top center). The one on the left-hand side of the two larger buildings in the middle of the page is the chamber building for Moctezuma's war council while the one on the right is his personal council. Below on the right are plaintiffs bringing their case to the ruler.
S. Gruzinski, Painting the Conquest (Paris, 1992), p. 118.