Lanfranc of Pavia was archbishop of Canterbury from 1070 to 1089, and so for nineteen critical years in the history of the Anglo-Norman church and kingdom after the Norman conquest of 1066. This is the first full scholarly study of Lanfranc for thirty years. This intelligent and considered historical biography reconsiders his career and outstanding achievements in all major aspects, focusing on his qualities of wisdom, diligence, and statesmanship.