Josephus, The Jewish War 1.320
Hereupon Herod was very angry at him, and was going to fight against Macheras as his enemy; but he restrained his indignation, and marched to Antony to accuse Macheras of maladministration. But Macheras was made sensible of his offenses, and followed after the king immediately, and earnestly begged and obtained that he would be reconciled to him.
However, Herod did not desist from his resolution of going to Antony; but when he heard that he was besieging Samosata with a great army, which is a strong city near to Euphrates, he made the greater haste; as observing that this was a proper opportunity for showing at once his courage, and for doing what would greatly oblige Antony.
Indeed, when he came, he soon made an end of that siege, and slew a great number of the barbarians, and took from them a large prey; insomuch that Antony, who admired his courage formerly, did now admire it still more. Accordingly, he heaped many more honors upon him, and gave him more assured hopes that he should gain his kingdom; and now king Antiochus was forced to deliver up Samosata.
- ע"פ יוסף בן ממתיהו, נכבשה עיר הבירה של קומגנה - סאמוסטה - ע"י אנתוני, בשל סיועו של הורדוס.
- הורדוס סייע לאנתוני בשל רצונו לחייב את אנתוני לסייע לו בעתיד.
- המצור אילץ אץ אנטיוכוס I מקומגנה למסור את העיר לידי הרומים.