The first information about the church of St. Marcella in Denbigh dates from the 13th century. The building was dedicated to a saint from the 7th century, which according to tradition was supposed to have a hermitage with a holy well in this place. It was such an important place for the local population that even though it was a kilometer away from the town center, it was always a parish church for Denbigh. It was also called the White Church (Eglwys Wen) probably because of the whitewashed walls. At the end of the fifteenth century, the temple was thoroughly rebuilt in the English perpendicular gothic style. Subsequent renovations were carried out in the 19th and early 20th centuries.
The church from the late fifteenth and early sixteenth centuries consisted of two naves of equal length, covered with separate gable roofs. From the south, it had a porch with window fragments preserved of late medieval stained glass. The west side of the church was closed by a four-sided tower with two small buttresses and crowned with battlement. The south wall was divided by four, and the east by two large windows with tracery. Two smaller windows are on the north side. The interior of both naves is decorated with a magnificent timber hammer-beam roof truss from the turn of the 15th/16th century, decorated with painted heads of animals and beasts.
Wooding J., Yates N., A Guide to the churches and chapels of Wales, Cardiff 2011.
Website coflein.gov.uk, St Marcella’s church, Llanfarchell; Llanfarchell Church, Denbigh.