King George V - Founder of the House of Windsor

King George V, born George Frederick Ernest Albert, ascended to the British throne in 1910, inheriting an empire at the height of its power. His reign was marked by significant events, including the First World War, during which he played a crucial role in boosting morale and supporting the troops. As the founder of the House of Windsor, he changed the name of the royal family from Saxe-Coburg and Gotha to distance the monarchy from its German roots amidst anti-German sentiment during the war. King George V's dedication to duty and his efforts to modernize the monarchy solidified the Windsor dynasty and helped maintain the stability of the British monarchy during a tumultuous period.