In some versions of the story, Clytemnestra coerces Agamemnon into walking across some purple robes when he first reenters his palace. Later, some say they she trapped him in the bathtub with either these same robes or some very like them. This all becomes pretty ironic because the color purple has long been associated with royalty. So, Agamemnon's rule is ended in part by an item that represents the power and dignity of royalty.