Founded in about 1131 by Ranulf, earl of Chester as a house for Savignac monks. Like Neath (Wales's other Savignac house, Basingwerk started under the close protection of the marcher lord. Its site at Basingwerk was chosen to be close to Winifred's well there, and it may have been monks from Basingwerk who commissioned one of the early versions of the saint's life.. When the orders were merged in 1147, Basingwerk became Cistercian.
More about the abbey on the Monastic Wales web site at http://www.monasticwales.org/site/24 .