 St Caffo 's Church , Llangaffo is a 19th @-@ century church , in the south of Anglesey , north Wales , about 5 miles ( 8 @.@ 0 km ) from the county town , <unk> . It was constructed in 1846 to replace the previous medieval church in the village of Llangaffo . The new building includes a number of monuments from the old church , and has a spire which is a prominent local landmark . The churchyard has part of a stone cross dating from the 9th or 10th century , and some gravestones from the 9th to 11th centuries . It is dedicated to St Caffo , a 6th @-@ century martyr who was killed in the vicinity . 
