Who Was The Longest Reigning King Of England?
George III’s reign of 59 years and 96 days makes his the longest reign of a king of Great Britain and the United Kingdom. Henry III’s reign of 56 years and either 29 or 30 days makes him the longest ruling king and monarch of the Kingdom of England before it was merged with the Kingdom of Scotland, which, perhaps, directly answers your question. The longest ruling monarch, regardless of sex, of the Kingdom of Great Britain and the United Kingdom was Queen Victoria, whose rule of 63 years and 216 days is currently more than four years longer than any other monarch.
