Thomas Magister

A rhetorician and grammarian, about A.D. 1310. He was a native of Thessalonica, and lived at the court of the emperor Andronicus Palaeologus I., where he held the offices of marshal (magister officiorum) and keeper of the archives (chartophylax); but he afterwards retired to a monastery, where he assumed the name of Theodūlus, and devoted himself to the study of the ancient Greek authors. His chief work, which has come down to us, is a lexicon of Attic words (Κατὰ Ἀλφάβητον Ὀνομάτων Ἀττικῶν Ἐκλογαί), compiled from the works of the elder grammarians, such as Phrynichus, Ammonius, Herodian, and Moeris. It is edited by Ritschl (Halle, 1831).