It is well known that political, economic, and social power in the British Isles in the Middle Ages lay in the hands of a small group of domini-lords. In his final book, the late Sir Rees Davies explores the personalities of these magnates, the nature of their lordship, and the ways in which it was expressed in a diverse and divided region in the period 1272-1422. Although their right to rule was rarely questioned, the lords flaunted their...