Elizabeth II has reigned as Queen of 16 sovereign states since 1952. She was born in London and educated privately before beginning public duties during World War II. Elizabeth met her husband Prince Philip in 1939 and they married in 1947. Upon the death of her father King George VI in 1952, Elizabeth ascended to the throne at age 25. Now in her Platinum Jubilee year, Elizabeth II remains one of the longest-serving and widely traveled monarchs in history.