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.
Heptanomis Heptanomis ( ; Greek: ἡ Επτανομίς , in Ptol. iv. 5. § 55; more properly Ἑπτὰ Νομοί or Ἑπταπολίς , in Dionysius Periegetes 251; and sometimes ἡ μεταζύ[γή] ; meaning "Seven Nomes", a "nome" being a subdivision of ancient Egypt), the modern "Misr-al-Wosta" of the Arabian geographers, or Middle Egypt, may be described generally as the district which separates the Thebaïd from the Delta.