Arms of Pembroke College, Cambridge: Arms of Valence (Barry (of ten) argent and azure, an orle of French martlets gules) dimidiating St Pol (Châtillon): (Gules, three pales vair a chief or with a label of three points azure for difference). Anachronistic use of dimidiation, which was an experimental phase which went out of fashion soon after the start of the age of heraldry (c.1200-1215) to be replaced by impalement, where the whole of each shield is shown, not just half. These are the arms of "Marie de St Pol" (c.1303–1377) (Countess of Pembroke), a member of the Châtillon family of France and the wife of Aymer de Valence, 2nd Earl of Pembroke (c.1275-1324) and foundress of Pembroke College, Cambridge.