Henry V was able to assert his authority in Normandy thanks to his control of Rouen. The English stayed for almost thirty years. Although there was little change in the way Normandy was governed, there was a symbolic change in the seal. A single seal, that of the Viscount of Rouen, has two shields side by side: the first, with the arms of France and fleurs-de-lys, and the second, divided, with the same arms in the first and third sections but the three leopards of England in the second and fourth sections.
17 December 1439
France - Rouen - Archives départementales de Seine-Maritime
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