Normandy

Normandy was a region of France located in the north of the country, by the English Channel.

In the mid-11th century, William the Conqueror was the Duke of Normandy. He became king of England in 1066 by defeating King Harold Godwinson in the Battle of Hastings. (DW: The Time Meddler)

In World War II, Normandy, along with the rest of France, was conquered by Nazi Germany. Being next to the English Channel, Normandy was the first area of France where allied troops landed, in an operation organised by British Prime Minister, Winston Churchill, to begin the liberation of the country. (SP: Doctor Who: The Monsters Are Coming!) These landing took place in June 1944 and were known as the Normandy landings. (EDA: The Taint)

In an alternate timeline, the Normandy Landings took place before the summer of 1942. Three of Britain's special Ironsides quickly overran the German forces. (DWA: Doctor Who The Official Annual 2011)