High Quality Content by WIKIPEDIA articles! St Mary`s Church, Llanfair Mathafarn Eithaf is a small medieval church in Anglesey, north Wales. The earliest parts of the building, including the nave and the north doorway, date from the 14th century. Other parts, including the chancel and the east window, date from the 15th century. It is associated with the Welsh poet and clergyman Goronwy Owen, who was born nearby and served as curate here. He later travelled to America to teach at The College of William Mary, Virginia.