5. Darius being dead the kingdom passed to his son Xerxes. Now Xerxes at the first was by no means anxious to make a march against Hellas, but against Egypt he continued to gather a force. Mardonios however, the son of Gobryas, who was a cousin of Xerxes, being sister’s son to Darius, was ever at his side, and having power with him more than any other of the Persians, he kept continually to such discourse as this which follows, saying: “Master, it is not fitting that the Athenians, after having done to the Persians very great evil, should not pay the penalty for that which they have done. What if thou shouldest 967 at this present time do that which thou hast in thy hands to do; and when thou hast tamed the land of Egypt, which has broken out insolently against us, then do thou march an army against Athens, that a good report may be made of thee by men, and that in future every one may beware of making expeditions against thy land.” Thus far his speech had to do with vengeance, 968