Adauctus an Italian and steward of certain of the royal domains, in a city of Phrygia, the name of which is unknown. He perished during the persecution of Diocletian, about 303. His memory is celebrated by the Latin church on the 7th of February; by the Greeks, October 3d. — Eusebius, Eccl. Hist. 8, 1; Butler, Lives of Saints, Feb. 7.