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

[508] Upon Arehelaus's saying this, and much more to the same purpose, Herod's displeasure against Pheroras was mollified; yet did he persevere in his own indignation against Alexander, and said he would have his daughter divorced, and taken away from him, and this till he had brought Herod to that pass, that, contrary to his former behavior to him, he petitioned Archelaus for the young man, and that he would let his daughter continue espoused to him: but Archelaus made him strongly believe that he would permit her to be married to any one else, but not to Alexander, because he looked upon it as a very valuable advantage, that the relation they had contracted by that affinity, and the privileges that went along with it, might be preserved. And when the king said that his son would take it for a great favor to him, if he would not dissolve that marriage, especially since they had already children between the young man and her, and since that wife of his was so well beloved by him, and that as while she remains his wife she would be a great preservative to him, and keep him from offending, as he had formerly done; so if she should be once torn away from him, she would be the cause of his falling into despair, because such young men's attempts are best mollified when they are diverted from them by settling their affections at home. So Arehelaus complied with what Herod desired, but not without difficulty, and was both himself reconciled to the young man, and reconciled his father to him also. However, he said he must, by all means, be sent to Rome to discourse with Caesar, because he had already written a full account to him of this whole matter.