St. Hilary’s Chapel was built in the early 14th-century as the garrison chapel for nearby Denbigh Castle. The official parish church was actually St. Marcella’s, but St. Hilary’s was closer to the center of the town and eventually took over many of the functions of a parish church. The chapel consisted of a five-bay nave, north aisle and chancel, as well as the still surviving west tower. Many of the original windows were replaced by larger openings and the aisle was rebuilt in the 18th-century. During the English Civil War…
