Excavations were carried out at the moated sites of Barrow Old Hall and Twiss Green, in Warrington, North West England, in the 1980s. Sub-manorial estates were established at these two sites by the fourteenth century, located near the boundaries of their multi-moated townships. Townships with multiple moats were a feature of parts of North West England and may have been the result of medieval assarting and the expansion of agriculture on to fringe...