Two centuries earlier a Welsh seer, "Robin Ddu" ("Robin the Dark"), said the roof on the refectory would go to a church under Moel Famau. It did: when the abbey was sold, the parts of the roof went to St Mary's Church in Cilcain below the slopes of Moel Famau. Another section of roof was reportedly given to the Collegiate and Parochial Church of St Peter at Ruthin, where it still covers the North Nave. Its Jesse window went to the Church of St Dyfnog at Llanrhaeadr-yng-Nghinmeirch.