 It was built in the 15th century as a chapel of ease to serve St <unk> 's Church , Rhodogeidio , about 0 @.@ 75 miles ( 1 @.@ 25 km ) to the east . Restoration work was carried out in the 19th century , but the church later fell into disuse . It has been in ruins since sometime between 1937 , when the survey by the Royal Commission on Ancient and Historical Monuments in Wales and Monmouthshire recorded its condition as " fair " , and 1970 , when it was given listed building status and its " very poor " condition noted . 
