In 1097, Sankt Aldegund had its first documentary mention as "Sanctam Aldegundam". It is known that the place was settled as far back as Roman times from the foundations of a Roman "villa rustica" south of the village, and also from a woman's grave from Constantine the Great’s time (Emperor from AD 306 to 337, in early Christian times) unearthed in 1953 during vineyard work. The grave also yielded up valuable grave goods made of glass and ceramic, among them a blue glass bowl shaped like a little ship, whose fine execution had never before been seen in a find north of the Alps.