Queen’s birthday brings together 4 generations of royal family

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As Queen Elizabeth II celebrates her 90th birthday, she was surrounded by four generations of the royal family as crowds gather outside Buckingham Palace. Her birthday was in April but it is tradition to celebrate when in the summer when the weather is nicer. It was so warm, though, that of the soldiers in the ceremony fainted from overheating. NBC’s Kelly Cobiella repots for TODAY.