What were the monarchs churchill served under?

Winston Churchill served under two monarchs during his political career: King Edward VII and King George V during his early years, and then later under King George VI during World War II. His tenure as Prime Minister spanned from 1940 to 1945, primarily under King George VI, who was a significant figure during the war. After the war, Churchill also served briefly under Queen Elizabeth II when he returned to office in 1951 until 1955.