A ruined Cistercian abbey on the Thames near Marlow, rebuilt as a residence and notorious in the 18th cent. as the meeting‐place of a convivial club known as the Franciscans or the Hell‐Fire Club. This was founded by Sir Francis Dashwood, and Wilkes and Dodginton were among its members. There is a good deal about it in Johnstone's Chrysal, or The Adventures of a Guinea (iii. ii, chs 17 et seq.).