 The monastery at Llanfaes was restored with help from Edward II (r. 130727) but then thoroughly plundered and destroyed by agents of Henry IV as a punishment for its friars' support of the Glyndŵr Rising (14001415).Whatever was subsequently rebuilt was dissolved with the other monasteries by Henry VIII in 1537.Afterwards, the church was used a barn and Joan's stone coffin as a watering trough before being removed along with the monastery's other furnishings to St. Mary's and St. Nicholas's in Beaumaris.