Seated on the archiepiscopal throne, William takes the oath of office, with his right hand on the Gospels. He is watched by a group of canons with characteristic tonsures, consisting of a shaved crown above long hair covering their ears and necks. They mostly wear white choir robes. To the right is a lesser cleric in red without the tonsure. William is depicted wearing the standard archiepiscopal vestments, including the pallium (a strip of white cloth with black crosses which encircles the shoulders and hangs down in front and behind), even though in reality he had not yet received the pallium from the pope (see panels 4c-4e and 8b). This scene is not mentioned in the written sources, but serves to introduce William as archbishop for the first time.
