Alexis m. Ancient Greek Ἄλεξις or Ἀλέξιος 'defender'.
The name of a 4th-5th C Roman saint, a 10th-11th C Byzantine emperor, a 12th C Byzantine emperor, a 12th-13th C Byzantine emperor, two 13th C Byzantine emperors, a 13th C emperor of Trebizond, two 14th C emperors of Trebizond, a 14th C Russian saint, and a 15th C emperor of Trebizond.