 Hecatomnus became king of Caria, at that time part of the Persian Empire, ruling from 404 BC to 358 BC and establishing the Hekatomnid dynasty.He left three sons, Mausolus, Idrieus and Pixodarus—all of whom—in their turn, succeeded him in the sovereignty; and two daughters, Artemisia and Ada, who were married to their brothers Mausolus and Idrieus.Mausolus moved his capital from Mylasa to Halicarnassus.