0 Euro - Falaise - Château Guillaume le Conquerant

EuroSouvenir notes are a private commemorative series launched in 2016, sold as legal-tender-exempt collector items at tourist sites across Europe. They carry genuine security features — printed by Oberthur Fiduciaire in Rennes, the same firm responsible for a significant share of French official banknote production — which lends them a more convincing physical quality than most souvenir paper. The zero denomination is the point: these are explicitly not currency, a status that exempts them from European Central Bank restrictions on euro-denominated printing.

Falaise in Normandy is traditionally identified as the birthplace of William the Conqueror, born around 1028. The castle bearing his name was substantially rebuilt in the 12th century under Henry I of England, long after William's death.