Yeoman Warders were established in 1485 by King Henry VIII to protect the Tower of London. Over the centuries, their role evolved until now they are ceremonial guards at the Her Majesty’s Royal Palace plus tour guides at the Tower of London. Today, they number 36 men and one woman. In order to qualify, they must be retired from the Armed Forces as non-commissioned officers and served for at least 22 years. These Beefeaters are wearing the red and gold Tudor State Dress uniform reserved for formal state events. The occasion on this day was one of the three summer gala garden parties hosted by Queen Elizabeth at Buckingham Palace.