 Complete the following phrase:  Artaxerxes III was succeeded by Artaxerxes IV Arses, who before he could act was also poisoned by Bagoas. Bagoas is further said to have killed not only all Arses children, but many of the other princes of the land. Bagoas then placed Darius III, a nephew of Artaxerxes IV, on the throne. Darius III, previously Satrap of Armenia, personally forced Bagoas to swallow poison. In 334 BC, when Darius was just succeeding in subduing Egypt again, Alexander and his battle-hardened troops 