The Yeomen Warders of Her Majesty’s Royal Palace and Fortress the Tower of London, and Members of the Sovereign's Body Guard of the Yeoman Guard Extraordinary, popularly known as the Beefeaters, are ceremonial guardians of the Tower of London. The Yeomen Warders were formed in 1485 by the new king Henry VII, the first monarch of the Tudor dynasty, and the Tudor rose, a heraldic badge of the dynasty, is part of the badge of the Yeomen Warders to this day. Yeomen Warders began guarding the Tower in 1485. Today there are 35 Yeomen Warders and one Chief Warder. All warders are retired from the Armed Forces of Commonwealth realms and must be former senior non-commissioned officers with at least 22 years of service.