Note 256 — Chapter IX · CASTLES OF THE THIRTEENTH CENTURY: THE FORTIFICATION OF THE CURTAIN
Reading edition
They appear to have been a feature of the keep at Pontefract; cf. also Micklegate, Monk, and Bootham bars at York, which have bartizans at the outer angles. At Lincoln the wall of the upper floor of the gatehouse, between the bartizans, presents an obtuse angle to the field.