at Hereford Cathedral (also thought to have been fan vaulted on the basis of a drawing by William Stukeley, and the only fan-vaulted chapter house of its kind; no other chapter houses in England feature a fan vault, though their radial rib vaults are often mistaken for fan vaults). The other three parts of the cloister at Gloucester were begun in 1381, possibly under Robert Lesyngham.

Other examples of early fan vaults exist around Gloucester, implying