The agricultural economy of eighteenth-century England exhibited many paradoxes, being in part progressive and even entrepreneurial, yet existing in a legal context which preserved many ancient customs, rights, duties and taxes. Within the one county of Northumberland we find the Culley brothers with their business-like attitudes and innovative and scientific farming methods and, in contrast, antique manorial regimes with courts, fines and heriots, such as prevailed in the manors of Hartleyburn and Bellister. We also find, as throughout England, the ‘contentious tithe’ and what must have been one of the most lucrative examples of tithe-farming, by which one of the North East's leading merchants and its first banker made a considerable part of his fortune out of a lease on this venerable tax from the appropriators, Merton College, Oxford.