The church at Llansannor appeared for the first time in historical documents in 1180, as the property of the Tewkesbury Abbey and probably at that time was still a small chapel. Until the 13th century, it was in the possession of the lords of Glamorgan. In the 17th and 19th centuries, expansion and renovation were carried out
The church consists of a rectangular nave from the thirteenth century and a shorter but not much narrower chancel. On the western side there is a slender tower dating perhaps from the 16th century. Its upper part with triangular gables on each side is surely a century later. The southern entrance to the nave leads through the sixteenth-century porch. All windows were transformed during Victorian reconstruction. Inside the nave there is a timber roof truss from the fifteenth century, a baptismal font and a well-preserved tombstone of the knight from the fourteenth century.
Website britishlistedbuildings.co.uk, Church of St. Senwyr A Grade I Listed Building in Penllyn, Vale of Glamorgan.
Website wikipedia.org, St Senwyr’s Church.