Columbia subject headings:
Rhys ap Gruffydd, 1132-1197.
Wales--History--1066-1284.
Wales--Kings and rulers--Biography.
Harvard subject headings:
Rhys ap Gruffydd, approximately 1132-1197.
Princeton subject headings:
Rhys ap Gruffydd, 1132-1197.
Wales--History--1066-1284.
Wales--Kings and rulers--Biography.