Monastic Wales.

Source details: (Book)

Gruffudd ap Cynan and the Romanesque church of Penmon, Anglesey

Gem, R.

The Archaeology of Early Medieval Celtic Churches, pp.301-312

Society for Medieval Archaeology Monograph, 29 / Society for Church Archaeology Monograph, 1

Maney (Leeds 2009)

Sites linked to this source

Penmon Priory, Anglesey

People linked to this source

Gruffudd ap Cynan