Bernard F. Reilly is Professor Emeritus of History at Villanova University. He has written a number of books, in addition those on the Kingdom of Leon-Castilla, including The Contest of Christian and Muslim Spain, 1031-1157 and The Medieval Spains.

"Reilly displays a mastery of the documentation. He has sought out every known royal, papal, and private document relating to the king and his reign, examined them and purged them of fakes or interpolations. He obviously has made a major contribution to our knowledge." (Joseph O'Callaghan, Fordham University) "Reilly's previous books and articles have secured his reputation as one of North America's foremost authorities on Leon-Castilla during the eleventh and twelfth centuries. This book serves to confirm the reputation." (Clara Estow, University of Massachusetts, Boston)

Bernard F. Reilly is Professor Emeritus of History at Villanova University. He has written a number of books, in addition those on the Kingdom of Leon-Castilla, including The Contest of Christian and Muslim Spain, 1031-1157 and The Medieval Spains.

"Reilly displays a mastery of the documentation. He has sought out every known royal, papal, and private document relating to the king and his reign, examined them and purged them of fakes or interpolations. He obviously has made a major contribution to our knowledge." (Joseph O'Callaghan, Fordham University) "Reilly's previous books and articles have secured his reputation as one of North America's foremost authorities on Leon-Castilla during the eleventh and twelfth centuries. This book serves to confirm the reputation." (Clara Estow, University of Massachusetts, Boston)

Bernard F. Reilly is Professor Emeritus of History at Villanova University. He has written a number of books, in addition those on the Kingdom of Leon-Castilla, including The Contest of Christian and Muslim Spain, 1031-1157 and The Medieval Spains.

"Reilly displays a mastery of the documentation. He has sought out every known royal, papal, and private document relating to the king and his reign, examined them and purged them of fakes or interpolations. He obviously has made a major contribution to our knowledge." (Joseph O'Callaghan, Fordham University) "Reilly's previous books and articles have secured his reputation as one of North America's foremost authorities on Leon-Castilla during the eleventh and twelfth centuries. This book serves to confirm the reputation." (Clara Estow, University of Massachusetts, Boston)