Grid Reference 497923

The original "Llan" probably dates back to the 6th century, as there was once an inscribed stone (lost) in the area. Rhidian is probably a corruption of 'Tryrulhid', who was St. Illtyd's wife. The church itself is 13th century with the present chancel and tower added in the 14th century. A large stone block named 'the Parson's block' tops the massive west tower. This structure was originally a fire beacon to give warning of enemies approaching by land or sea.

In the porch is the mysterious 'leper -stone' bearing representations of human and animal figures. This was discovered near the tower and is dated back to the 9th or 10th century. It might have Viking origins and could possibly be a hogback tombstone. On the green outside are the remains of an 11th century wheel cross known as the 'Pillory' (or whipping) stone.

Key from Heron's Way Service Station all year.