events

Charles II of England sells Dunkirk to Louis XIV of France for 40,000 pounds.

Sale of Dunkirk

1662 transfer from England to France

The Sale of Dunkirk took place on 27 October [O.S. 17 October] 1662 when Charles II of England sold his sovereign rights to Dunkirk and Fort-Mardyck to his cousin Louis XIV of France.
Source: Wikipedia (CC BY-SA)