Flavius Josephus, The Wars of the Jews
William Whiston, A.M., Ed.

[571] But he was inflamed with anger at them, and chiefly at Pheroras's wife; for Salome had principally accused her. So he got an assembly of his friends and kindred together, and there accused this woman of many things, and particularly of the affronts she had offered his daughters; and that she had supplied the Pharisees with money, by way of rewards for what they had done against him, and had procured his brother to become his enemy, by giving him love potions. At length he turned his speech to Pheroras, and told him that he would give him his choice of these two things: Whether he would keep in with his brother, or with his wife? And when Pheroras said that he would die rather than forsake his wife? Herod, not knowing what to do further in that matter, turned his speech to Antipater, and charged him to have no intercourse either with Pheroras's wife, or with Pheroras himself, or with any one belonging to her. Now though Antipater did not transgress that his injunction publicly, yet did he in secret come to their night meetings; and because he was afraid that Salome observed what he did, he procured, by the means of his Italian friends, that he might go and live at Rome; for when they wrote that it was proper for Antipater to be sent to Caesar for some time, Herod made no delay, but sent him, and that with a splendid attendance, and a great deal of money, and gave him his testament to carry with him, - wherein Antipater had the kingdom bequeathed to him, and wherein Herod was named for Antipater's successor; that Herod, I mean, who was the son of Mariarmne, the high priest's daughter.