Pharnaces, whom he defeated at Zela. In consequence of the complaints of certain Galatian princes, Deiotarus was deprived of part of his dominions in 47 BC, but was pardoned by Caesar and allowed to retain the title of King. On the death of Mithridates of Pergamum, Tetrarch of the Trocmi, Deiotarus was a candidate for the vacancy. Other tetrarchs also pressed their claims; and, further, Deiotarus was accused at Rome in 45 BC by his grandson Castor of having attempted to assassinate Caesar when the latter, then Dictator, was his guest in Galatia. Cicero, who entertained a high opinion of Deiotarus, whose acquaintance he had made when governor of Cilicia, undertook his defence, the case being heard in Caesar's own house at Rome. Cicero to Gaius Caesar: "... for it was king Deiotarus who raised your family, when abject and obscure, from darkness into light. Who ever heard of your father, or who he was, before they heard whose son-in-law he was?" The matter was allowed to drop for a time, and the assassination of Caesar prevented any final decision of the verdict being pronounced. In his speech Cicero briefly dismisses the charge of assassination, the main question being the distribution of the provinces, which was the real cause of the quarrels between Deiotarus and his relatives. After Caesar's death, Mark Antony, for a large monetary consideration, publicly announced that, in accordance with instructions left by Caesar, Deiotarus was to resume possession of all the territory of which he had been deprived. When civil war again broke out, Deiotarus was persuaded to support the anti-Caesarian party of Brutus and Cassius, but after the Battle of Philippi in 42 BC, went over to the triumvirs. He remained in possession of his kingdom until his death at a very advanced age. Deiotarus was the patron to whom the Greek agricultural manual by Diophanes of Nicaea was dedicated. He was married to Berenice, Princess of Pergamon, daughter of Attalus III Philomater Euergetes, King of Pergamon, and his wife of the Attalid dynasty. They were the parents of Adobogiona, who married Brogitarus, King of Galatia, who reigned concurrently with his father-in-law. Adobogiona and Brogitarus were the parents of Amyntas, Tetrarch of the Trocmi and King of Galatia. Legacy The Legio XXII Deiotariana, a Roman legion, traced its lineage back to Deiotarus. It was originally part of the Galatian Army, and the equivalent of three