House Atreides is a fictional noble family from the Dune universe created by Frank Herbert. One of the Great Houses of the feudal interstellar empire known as the Imperium, whose members play a role in every novel in the series. House Atreides rules the water planet of Caladan, employing noble spirit, just ways and virtue in its endeavors. The colors of House Atreides are green and black, and their symbol is a red hawk.