and Eure, when Normandy was divided into the regions of Lower Normandy and Upper Normandy. This division continued to provoke controversy, and many people continued to call for the two regions to be reunited. The two regions were finally merged on 1 January 2016.

The name Upper Normandy existed prior to 1956 and referred by tradition to territories which were included within the administrative region: the Pays de Caux,