Theon of Alexandria, was a Greek scholar and mathematician who lived in Alexandria, Egypt, his daughter was Hypatia, a Greek mathematician, astronomer, inventor, and philosopher in Egypt, then a part of which location?
Theon of Alexandria Theon of Alexandria ( ; Ancient Greek: Θέων ὁ Ἀλεξανδρεύς ; c. AD  335 – c. 405) was a Greek scholar and mathematician who lived in Alexandria, Egypt. He edited and arranged Euclid's "Elements" and wrote commentaries on works by Euclid and Ptolemy. His daughter Hypatia also won fame as a mathematician.
Ostrakine Ostrakine (Greek: Ὀστρακίνη or Latin: Ostracena) was an Ancient Egyptian city at a location that is known as El Felusiyat today.