the Egyptian ideology surrounding kingship. It equated Isis with the kandake, the queen or queen mother of the Kushite king. The Ptolemaic Greek kings, who ruled Egypt as pharaohs from 305 to 30 BCE, developed an ideology that linked them with both Egyptian and Greek deities, to strengthen their claim to the throne in the eyes of their Greek and Egyptian subjects. For centuries before, Greek colonists and visitors to Egypt had drawn parallels between Egyptian deities and their own, in a process known as interpretatio graeca. Herodotus, a Greek who wrote about Egypt in the fifth century BCE, likened Isis to Demeter, whose mythical search for her daughter Persephone resembled Isis's search for Osiris. Demeter was one of the few Greek deities to be widely adopted by Egyptians in Ptolemaic times, so the similarity between her and Isis provided a link between the two cultures. In other cases, Isis was linked with Aphrodite through the sexual aspects of her character. Building on these traditions, the first two Ptolemies promoted the cult of the new god Serapis, who combined aspects of Osiris and Apis with those of Greek gods such as Zeus and Dionysus. Isis, portrayed in a Hellenized form, was regarded as the consort of Serapis as well as of Osiris. Ptolemy II and his sister and wife Arsinoe II developed a ruler cult around themselves, so that they were worshipped in the same temples as Serapis and Isis, and Arsinoe was likened to both Isis and Aphrodite. Some later Ptolemaic queens identified themselves still more closely with Isis. Cleopatra III, in the second century BCE, used Isis's name in place of her own in inscriptions, and Cleopatra VII, the last ruler of Egypt before it was annexed by Rome, used the epithet "the new Isis". Temples and festivals Down to the end of the New Kingdom, Isis's cult was closely tied to those of male deities such as Osiris, Min, or Amun. She was commonly worshipped alongside them as their mother or consort, and she was especially widely worshipped as the mother of various local forms of Horus. Nevertheless, she had independent priesthoods at some sites and at least one temple of her own, at Osiris's cult center of Abydos, during the late New Kingdom. The earliest known major temples to Isis were the Iseion at Behbeit el-Hagar in northern Egypt and Philae in the far south. Both