This is the first of two volumes offering for the first time an authoritative and complete prosopography of post-Conquest England, 1066-1166. Based on extensive and wide-ranging research, the two volumes contain over eight thousand entries on persons occurring in the principal English administrative sources for the post-Conquest period -- Domesday Book, the Pipe Rolls, and Cartae Baronum. Continental origin is a major focus of the entries, as well as the discussion of family and descent of fees which characterise the whole work; genealogical tables are included. An introduction discusses Domesday prosopography; an appendix gives the Latin texts of the Northamptonshire and Lindsey surveys.Post-Conquest genealogy and manorial history start with Domesday Book: genealogists will welcome this work.