 St Mary 's Church , Rhodogeidio is a small medieval church , dating from the 15th century , near Llannerch @-@ y @-@ medd , in Anglesey , north Wales . It served as a chapel of ease to another church in the area , St Ceidio 's . Some restoration work was carried out in the 19th century , but St Mary 's has since fallen into disuse and is now largely in ruins . 
