Which monarch was responsible for changing the royal family name to Windsor?

The royal family name was changed to Windsor by King George V in 1917. This change occurred during World War I when anti-German sentiment was particularly strong in Britain. The original family name was the House of Saxe-Coburg and Gotha, which highlighted the family's German roots. King George V wanted to distance the royal family from Germany, leading to the adoption of the name Windsor, derived from Windsor Castle, a significant royal residence.

This decision was significant not only for its immediate implications during the war but also for its lasting impact on the identity of the British monarchy. The name Windsor has since become synonymous with the British royal family.

Other figures mentioned, such as Queen Victoria, King Edward VII, and King George VI, played important roles in British history and the monarchy, but it was King George V who specifically initiated the renaming of the royal family to Windsor.