In post-classical history, an affinity was a collective name for the group (retinue) of (usually) men whom a lord gathered around himself in his service; it has been described by one modern historian as "the servants, retainers, and other followers of a lord", and as "part of the normal fabric of society". It is considered a fundamental aspect of bastard feudalism, and acted as a means of tying magnates to the lower nobility, just as feudalism had done in a different way. One form of the relationship was known as livery and maintenance. The lord provided livery badges to be worn by the retainer and "maintenance" or his support in their disputes, which often constituted obstruction of judicial processes. One of the earliest identifiable feudal affinities was that of William Marshal, 1st Earl of Pembroke, who by 1190 had gathered a force around him consisting of men without necessarily any strong tenurial connection to him. Rather than receiving land, these men received grants of office and the security of Pembroke's proximity to the king. Historian Michael Hicks has described it as a "personal, not feudal" connection, which David Crouch called an early example of a bastard feudal relationship. On the other hand, a hundred years later, the earl of Lincoln gathered bodies of men—often from among his tenants—from his estates in Lincoln, who were still linked to the earl feudally through their tenure of his land. Central to a noble affinity was the lord's indentured retainers, and beyond them was a more amorphous group of general supporters and contacts. The difference, K. B. McFarlane wrote, was that the former did the lord "exclusive service" but the latter received his good lordship "in ways both more and less permanent" than the retainers. Christine Carpenter has described the structure of the earl of Warwick's affinity as "a series of concentric circles" with him at the centre.