Berenice of Egypt was a queen who lived during the 3rd century BCE. She was the daughter of Ptolemy II Philadelphus and Arsinoe I, and she became the wife of Ptolemy III Euergetes. Berenice is known for her significant role in the Ptolemaic dynasty, which ruled Egypt after the death of Alexander the Great. Berenice is also famous for her dedication to the goddess Isis and her contributions to the arts and culture of ancient Egypt. Her legacy includes the establishment of the Library of Alexandria, which became a center of learning in the ancient world.