The Duke of Wellington defeated Napoleon at the Battle of Waterloo. To find the answer to this question, you can use different resources such as history books, online research, or even ask an expert in the field. For example, you can search for "Battle of Waterloo" on search engines, library databases, or historical websites to find reliable sources that provide detailed information about this event. It's always important to cross-reference information from multiple sources to ensure accuracy and get a comprehensive understanding of the topic.
