When did the last man to fight at the Battle of Waterloo die?

The last man to fight at the Battle of Waterloo was believed to be an English soldier named William Charles "Charlie" Niven, who passed away on December 24, 1898. He was only a teenager during the battle, which took place on June 18, 1815. Niven's death marked the end of direct connections to the historic conflict, as he was one of the last surviving veterans.