First comprehensive survey of how kinship rules were discussed and applied in medieval England.

Introduction
Canon law kinship structures
Common law kinship structures
The dominance of canon law kinship ideas
Kinship laws in practice
Trends underlying legal kinship structures
Conclusion
Appendix 1: Raymón of Penyafort's Quia tractare intendimus
Appendix 2: The historical introduction to Sciendum est
Appendix 3: Common law adaptations of canon law treatises: Quibus modis
Appendix 4: Common law adaptations of canon law treatises: Triplex est
Bibliography