Queen Elizabeth II's 12 prime ministers
Updated 1851 GMT (0251 HKT) July 14, 2016
Chat with us in Facebook Messenger. Find out what's happening in the world as it unfolds.
London (CNN)During her 64-year reign, Queen Elizabeth II has been served by 12 prime ministers. Many relationships were formed -- from Winston Churchill, to "Iron Lady" Margaret Thatcher -- and some proved more difficult than others.