[47] Compare Letronne _Recueil des Inscription Grecques de l’Egypte_, _tome_ i. _pp._ 363 _sqq._ Ptolemaeus Eupator is not mentioned by the historians. The name was first discovered in a Greek Papyrus at Berlin, written under Soter II. in the year 105 B.C., and indeed foisted in between Philometor and Euergetes. Böckh, who published the Papyrus (1821), referred the surname of Euergetes to Soter II. and his wife, and held Eupator to be a surname of the deified Euergetes II. In the same year Champollion-Figeac treated of this papyrus, and endeavoured to prove that Eupator was that son of Philometer put to death by Euergetes II. on his accession. This view was afterwards accepted by St. Martin, Böckh, and Letronne (_Rech. pour serv. à l’Hist. de l’Eg._ _p._ 124). In the meantime the name Eupator had been found in a second papyrus of the reign of Soter II., as also in a letter of Numenius upon the Phileusian obelisk of Herr Bankes of the time of Euergetes II. Eupator was named in both inscriptions, but did not stand behind, but before Philometor, and therefore could not be his son. Letronne now conjectured (_Recueil des Inscr._ _tome_ i. _p._ 365) that Eupator was another surname of Philometor. Then, however, it should have been καὶ Θεοῦ Εὐπάτορος τοῦ καὶ Φιλομήτορος, and not καὶ Θεοῦ Εὐπάτορος καὶ Θεοῦ Φιλομήτορος. In a letter to Letronne of the 1st December, 1844, from Thebes, which has been printed in the _Revue Archéol._ _tome_ i. _pp._ 678 _sqq._, I informed him that I had also found in several hieroglyphical inscriptions the name Eupator, and always before Philometor. The same reasons that I alleged against Letronne’s interpretation of the Greek name (that portion of the letter was not printed in the _Revue_), i. e. the simple recurrence of the Θεοῦ, did also not allow Eupator to be considered another name of Philometor in the hieroglyphical lists. He must have been a Ptolemy recognized for a short time as king, but not mentioned by the historians; and as Franz (_Corp. Inscr._ _vol._ iii. _p._ 285) and Letronne (_Rec._ _vol._ ii. _p._ 536) have recognized an elder brother of Philometor, who died in a few months, and was therefore omitted in the Ptolemaic canon.