Hippolytus of Rome : Again he says, "And the daughter of the king of the South will come to the king of the North to make with him agreements and the arms of him who brings her shall not stand and he shall be crushed and both she and he who brings her shall fall." [Daniel 11:6] And this also happened. For a certain Ptolemy, who reigned at this point in Egypt, went out with her two sons Ptolemy and Philometer, making agreements with Antiochus the king of Syria. And then she, having come to Scythopolis, was killed there, for he who led her betrayed her. Then at this point the two brothers engaged in war with one another and Philometer was killed, but Ptolemy ruled. — Commentary on Daniel 4.45.1-2 Jerome : Verse 6. "And at the end of the years they shall be leagued together (or, as Theodotion renders: And after his years they shall be united). And the daughter of the king of the South shall come to the king of the North in order to make friendship, but she shall not obtain strength of arm nor shall her seed endure. And she herself shall be handed over, as well as her young men (Vulgate: youths) who brought her and who were strengthening her in (these) times." As we have already said, it was Seleucus, surnamed Nicanor, who first ruled over Syria. The second king was Antiochus, who was called Soter. The third was Antiochus himself, who was called Theos, that is the Divine. He was the one who waged numerous wars with Ptolemy Philadelphus, who was the second ruler in Egypt, and he also fought with all the Babylonians and the men of the East, And so after many years Ptolemy Philadelphus wished to have done with this vexatious struggle, and so he gave his daughter, named Berenice, in marriage to Antiochus, who had already had by a previous wife, named Laodice, two sons, namely Seleucus, surnamed Callinicus, and the other, Antiochus. And Philadelphus conducted her as far as Pelusium and bestowed countless thousands of gold and silver by way of a dowry, from which circumstance he acquired the nickname of phernophoros or Dowry-giver (dotalis). But as for Antiochus, even though he had said he would regard Berenice as his royal consort and keep Laodice in the status of a concubine, he was finally prevailed upon by his love for Laodice to restore her to the status of queen, along with her children. But she was fearful that her husband might in his fickleness restore Berenice to favor once more, and so she had him put to death by her servants with the use of poison. And she handed over Berenice and the son whom she had born by Antiochus to Icadio and Genneus, princes of Antiochus, and then set up her elder son, Seleucus Callinicus, as king in his father's place. And so this is the matter referred to in this passage, namely that after many years Ptolemy Philadelphus and Antiochus Theos would conclude a friendship, and the daughter of the king of the South, that is Ptolemy, would go to the king of the North, that is Antiochus, in order to cement friendly relations between her father and her husband. And the text says that she will not be able to gain her end, nor shall her posterity remain upon the throne of Syria, but instead both Berenice and the men who had escorted her thither shall be put to death. And also the king, Antiochus, who had strengthened her, that is, through whom she could have obtained the mastery, was killed by his wife's poison. — St. Jerome, Commentary on Daniel, CHAPTER ELEVEN Theodoret of Cyrus : After Ptolemy Philpator died, his son Ptolemy (surnamed Epiphanes) reigned. That is what he means, "After his years, they will make an alliance." And he explains how they will make an alliance. By the king of the north he means Antiochus—not Antiochus Epiphanes but Antiochus the Great, who was the father of Antiochus Epiphanes. It was Antiochus the Great who was the contemporary with those Ptolemies. — COMMENTARY ON Daniel 11:6 Theodoret of Cyrus : But the marriage will not suffice to bring about an alliance. She will be returned to the one who had given her through those who brought her, along with the things that had been presented by her (for he says, "the one supporting her during those times"). Wealth was what had accomplished the strong and desired marriage. — COMMENTARY ON Daniel 11:6