The late Queen Elizabeth II would have reached her centenary on April 21 Get the free Morning Headlines email for news from our reporters across the world Sign up to our free Morning Headlines email Sign up to our free Morning Headlines email Email * SIGN UP I would like to be emailed about offers, events and updates from The Independent. Read our Privacy notice The King has honoured his “ darling Mama ” in a video message on what would have been her 100th birthday . In his tribute to the