This drawing is a fragment of a cartoon for a window in the hall (left side, second window) at Peterhouse, Cambridge, installed by William Morris & Co. 1872-1874). See A.C. Sewter, The Stained Glass of William Morris and his Circle, 1975-6, I, p. 46 and II, pl. 337

Thomas Gray (1716-1771), best known for his Eligy written in a Country Churchyard, was professor of modern history at Cambridge and a Peterhouse man. William Morris carried out an important series of windows at Peter house 1869-74