jambs of large C14 window to the east and a smaller, perhaps low-side, window immediately west.
an apparent keystone hints at post-medieval alteration
shouldered inner jambs to C14 windows.
Historical note: A Premonstratension nunnery at 'Gysnes' (Guyzance) was founded in early C12 by Richard Tison, and converted to a parochial curacy before the Dissolution.
Scheduled Ancient Monument (NU 209032)