 Likewise, it is said that the chapel of Embourg (Chaudfontaine) was consecrated by Monulph in 556.In the city archives of Chartres, a 7th-century attestation referring to Monulph is kept that was once part of a relic in Chartres Cathedral.In the Treasury of the Basilica of Saint Servatius a so-called "robe of Saint Monulph""" is kept, which probably dates from the 13th century.