Berenice III of Egypt

Berenice III came to power in 101 BC as co-ruler with Ptolemy X Alexander I, her uncle and husband, a arrangement that lasted until 88 BC. Thirteen years later she returned to share the throne with her father, Ptolemy IX Soter, in 81 BC. When he died that same year she became Egypt's sole monarch — the first time she ruled without a man beside her. Her lone reign lasted six months before ending in 80 BC, closing one of the Ptolemaic dynasty's stranger chapters of rotating kinship and crowns.