Affinities under bastard feudalism were collectives of gentry who follow and support a particular nobleman. Gentry members of affinities gave loyalty to their nobleman above loyalty to the king. Affinities were an integral part of the organization of society in England and Wales during the 15th century.
- Carpenter, Christine: The Beauchamp Affinity: A Study of Bastard Feudalism at Work. The English Historical Review, Oxford University Press, 1980.