Waterloo, st. helena, and elba are all places associated with

The correct answer is Napoleon.

Explanation:

The Battle of Waterloo began in 1815, near Waterloo (today's Belgium). The Imperial French army, under the command of Emperor Napoleon, was defeated by the British army and its allies under the command of the Duke of Wellington, along with the Prussian army, under the command of Gebhard von Blüchercher.

Saint Helena is a volcanic island located in the southern Atlantic Ocean. Napoleon Bonaparte was exiled to this island in October 1815, where he died in 1821.

After the agreement in Fontainebleau, the French emperor Napoleon was exiled to the Elbe after his forced abdication in 1814. During his stay on the island, Napoleon implemented several economic and social reforms to improve the quality of life of the islanders. Napoleon stayed on the island for 300 days, after which he escaped and returned to France. After that began his reign for one hundred days.