[Image:Diadochen1.png|thumb|right|float|300px| Other diadochi Other ]] The Ptolemaic dynasty was a Hellenistic royal family which ruled the Ptolemaic Empire in Egypt for nearly 300 years, from 305 BC to 30 BC. Ptolemy, a somatophylax, one of the seven bodyguards who served as Alexander the Great's generals and deputies , was appointed satrap of Egypt after Alexander's death in 323 BC. In 305 BC, he declared himself King Ptolemy I, later known as "Soter" (saviour). The Egyptians soon accepted the Ptolemies as the successors to the pharaohs of independent Egypt. Ptolemy's family ruled Egypt until the Roman conquest of 30 BC.
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