Penallt Old Church dates from the late thirteenth century or early fourteenth century and its dedication is unknown. The main part of the building is medieval, although the base of the tower is earlier, and the porch is later, bearing a date of 1539. The church was restored in 1885-7 and again in 1951. It is constructed of Old Red Sandstone.
The interior has a barrel-shaped ceiling from the sixteenth century and a four-bay Perpendicular arcade. It also contains an elaborate coat of arms of Queen Anne, dating from 1707. The altar table was carved in 1916 by a war refugee from Belgium, who was reputed to be a master carver at St. Rumbold's Cathedral in Mechelen.
References:The first written record of church in Danmark locality date back to the year 1291. Close to the church are several stones with a Christian text and cross inscribed. The oldest parts of the present red-brick church are from the 1300s. In the late 1400s the church was enlarged to the appearance it has today. The church has been modified both internally and externally several times, among other things after the fires in 1699 and 1889. There are lot of well-preserved mural paintings in the walls.