Because he was murdered on his way to defend the rights of the Church, he was honored as a martyr. A chapel was built at his place of death and original burial in Rülzheim, called the "Dieterskirchel". The place became an important pilgrimage site and is one of the oldest in the diocese of Speyer.
Baronius added his name to the Roman Martyrology when it was revised in the late 1500s. Theodard is venerated as the patron saint of drovers, cattle dealers and the city of Maastricht.
Dieterskirchel The chapel was built on the eastern edge of a vast forest south of the town of Rülzheim, and attracted pilgrimages and processions from Rülzheim, Rheinzabern, and elsewhere. Anselm of Liège mentions a church built in honor of St. Theodard in the eleventh century. A larger church replaced it the fourteenth century but was demolished in the 19th century. The current chapel, built in 1957, replaced its predecessor. Its exterior is reminiscent of the pilgrimage church of Ronchamp in the southern Vosges. The building consists of a church interior covered by a slightly domed flat roof, which serves as a canopy in the entrance area. The hall ends in the east, behind the altar, with a semicircular arch. At the southeast corner of the building is a small tower with a visible bell. A sandstone slab dating from 1517 was embedded in the north side of the exterior façade. It features, among other things, an incised drawing of a church, presumably the predecessor building. == See also ==