When visitors approach the parish, they can see the high tower of this church in Herzfeld from afar. It houses the tomb of St. Ida, who settled in Herzfeld in 786 and built what was probably the first stone church east of the Rhine here. The present church is an imposing neo-Gothic successor building from 1901.
In the crypt one finds foundation walls of the predecessor churches, which were uncovered during excavations in 1975. The golden reliquary, which contains the relics of Ida, who was canonized in 980, can also be seen there. Valuable inventory pieces commemorate the saint, who came from the Frankish royal family and can be considered a niece of Charlemagne. She married Egbert a Saxon duke. Ida and Egbert are considered ancestors of the later Saxon emperors. At the beginning of the 11th century, Herzfeld hosted an Imperial Prince's Day, which underlines the importance of this village in the early history of Germany.
Guided tours for guests are possible on request.