Duchy of Normandy noun2 •A country, a duchy in Europe, now only composed of the Channel Islands in the English Channel; a crown possession of the Monarch of England, since the Conquest of England by William the Conqueror, Duke of Normandy; bureaucratically, it is administered by the UK. •A historical duchy in France, located on the Normandy peninusla, and surrounding coast, that became the province of Normandy.
