The whole estate later fell into the hands of the Lordship of the FitzWalters (who were raised to Baron FitzWalters in 1295) and in 1299 the then Lord FitzWalter obtained a charter of confirmation for a fair every year at his manor of Diss, to be held around the feast of Saint Simon and Jude (28 October), and several days after. A grant made in 1298 to William Partekyn of Prilleston (now Billingford) granted, for homage and half a mark of silver, two homesteads in Diss, with liberty of washing his wool and cloths in Diss Meer. This came on the express condition that the gross dye should be washed off first. It seems as if the church of Diss was built by the same Lord, as his arms were cut into the stone of the south porch of the church several times.