Is human emotion unchanging? Over 100 letters which were sent to French prisoners during the Seven Years War, but which never reached them, have been opened for the first time.
18th Century letters reveal agonies of love
Sailing failings: The French navy was almost wiped out during the course of the war. Glossary
Seven Years War - A global conflict that began in 1756.
Admiralty - In the past, the Admiralty was the UK government department that was responsible for the navy.
Lieutenant - An army officer of middle rink.
Normandy - A region of northern France.