The book does not discuss Denbigh Castle at all as far as I can tell. The castle was started in the 1280s by Edward I; like so many castles in Britain it was demolished as part of the English Civil Wa [...]
“It was exactly in the year 1200 that Madoc, Lord of Bromfield, at the time when Prince Llewellyn was contending with King John, founded this monastic house in a deep hollow, already called the Valley [...]