We visited Hailes Abbey last summer. This former Cistercian abbey near Winchcombe, Gloucestershire, was founded in 1246 by Richard, Earl of Cornwall, elected King of the Romans and brother to King Henry III. The abbey soon acquired a relic of the (supposed) Holy Blood of Christ, ensuring that it became a popular place of pilgrimage.
Of course, Hailes Abbey was surrendered to Henry VIII’s Dissolution of the Monasteries, in 1539. All that remains today, in a peaceful country location, is romantic grassy ruins – very pleasant to stroll around and admire the Cistercian architecture, and much enjoyed by the dog.
We come across Cistercian ruins all over England. The massive extent of Henry VIII’s Dissolution is really brought home by this Wikipedia entry listing all the English Cistercian Abbeys.
Hailes Abbey is now managed by English Heritage on behalf of the National Trust.