Battle of Malplaquet
The tune is of French origin and dates at least from the 18th century. Allegedly it was composed the night after the Battle of Malplaquet in 1709. It became a French folk tune and was popularised by Marie Antoinette after she heard one of her maids singing it. The melody became so popular in France that it was used to represent the French defeat in Beethoven's composition "Wellington's Victory" Opus 91 written in 1813.