For 10 points, name this position held by two people named Montezuma.
Holders of this office were the only ones allowed to wear golden diadems and he was one of two people that could wear sandals inside a certain building. One of this office's holders legendarily had a fire within his chest that made him pass laws banning the use of cotton clothing by commoners, as well as making adultery punishable by death by buzzard.  Another person that held this position, who had the same name as the previous, supposedly drove out all sorcerers from his land after he received visions from seers of his palace being entirely flooded by water and his culture's god of war being shown cast upon the floor. Those two figures were recorded at length by the priest Diego Duran, though more general information on them comes from so- called codices. Another one of these figures was named after a mythical water monster that devoured human flesh - that one supposedly constructed temples of skulls leftover from human sacrifices from the Flowery Wars. That man, Ahuizotl, was succeeded by a man whose death sparked La Noche Triste. For 10 points, name this position held by two people named Montezuma.
Holders of this office were the only ones allowed to wear golden diadems and he was one of two people that could wear sandals inside a certain building.
{Aztec Emperor} [accept obvious equivalents, such as {Aztec king}, or {ruler of Aztecs}]