She was the first daughter of Pharaoh Ptolemy I Soter. ••• After the death of her first family, she fled to Egypt where her brother Ptolemy II Philadelphus (sibling lover) protected, and would marry her. They ruled jointly in true Egyptian fashion. In 271 BC only 45 and at the height of her powers, Arsinoe died.••• Ptolemy II continued her name in these behemoth gold Octodrachms. In true Ptolemaic fashion they were the largest gold coins produced and the portraits defied family members.