Joannes Actuarius (1275–1330)
Born 1275 CE, died 1330 CE.
Johannes Zacharias Actuarius (Greek: Ἰωάννης Ζαχαρίου Ἀκτουάριος; c. 1275 – c. 1328), son of Zacharias (Greek: Ζαχαρίας), was a Byzantine physician in Constantinople. He is given the title of Actuarius, a dignity frequently conferred at that court upon physicians.
Text from the Wikipedia article Joannes_Actuarius, licensed CC BY-SA 4.0.