John de Grandisson, also spelt Grandison, was Bishop of Exeter, in Devon, England, from 1327 to his death in 1369. Several works of art associated with him survive in the British Library, the British
Arms of Bishop Grandisson: Paly of six argent and azure, a bend sable charged with a mitre upon a priest's stole between two eagles displayed argent. Grandisson's Psalter, British Library. These are his paternal arms with a difference of a bishop's mitre substituted for the third eagle