George Leo Haydock, on Esth 11:1

Cleopatra. So the kings and queens of Egypt were styled after Lagus; whence we can only gather, that this translation was brought after the reign of Alexander, and most probably under Philometer, the sixth of his successors. He was a great admirer of the Jews, and employed one Dositheus as his general, who might be the priest here mentioned; as such an office was not incompatible with his character. (Tirinus) — Usher is of this opinion. See Josephus, contra Apion ii. But would he then be mentioned as if he had been a person almost unknown? (Calmet) — We may say that he only raised himself by merit, after this time. (Haydock) — Philometer reigned 177 years, B.C.[before Christ]. The Septuagint (Calmet) who gave their version in the 7th year of Philadelphus, (St. Epiphanius) were not the authors of the Greek edition of Esther; (Calmet) or perhaps, they may have adopted this of Lysimachus, (Huet; Du Hamel) as far as it went; the letter of Purim being only the groundwork of this history. If they did, Lysimachus must have lived before the time of Philometer; or what seems as probable, (Haydock) that the celebrated version has been made by different authors, and at different times. (Hody.) — Jerusalem. Here St. Jerome subjoins, “This beginning was also in the Vulgate edition, which does not occur in Hebrew or in any interpreter,” (Haydock) except the Septuagint. (Worthington) — This must be referred to what follows.