Complex sentence: Pope Avilius of Alexandria (or Abilius), also known as St. Sabellius (Abylius, Abitius, Milius and Melyos) (?-95 AD), was the 3rd Pope of Alexandria and Patriarch of the See of St. Mark.
Split into simpler sentences: Pope Avilius of Alexandria (or Abilius), also known as St. Sabellius (Abylius, Abitius, Milius) and St. Melyos, (?-95 AD). He was the 3rd Pope of Alexandria and Patriarch of the See of St. Mark.