Who is considered the last monarch of the House of Windsor to serve in combat?

King George VI is recognized as the last monarch of the House of Windsor to serve in combat due to his active role during World War II. He served in the British Royal Navy during the conflict, specifically in the early years before he became king. His commitment to military service was not only a personal endeavor but also a symbol of solidarity with his subjects, as the nation faced the challenges of war.

This historical context distinguishes him from the other figures listed. While Prince William and King Charles III have both served in the armed forces, their service occurred in peacetime or under different circumstances, without direct involvement in combat situations during a war. Prince Edward did not serve in the military at that level either. King George VI's unique position as the monarch who faced war at a personal level exemplifies his dedication and is why he stands out in this regard.