Prince Philip: Top 10 Gaffes on 90th Birthday

June 9, 2011— -- Prince Philip, the Duke of Edinburgh, will be 90 Friday, defying the years with his vitality and outspokenness. Married to Queen Elizabeth for 60 years, he has been her constant companion and discrete supporter around the world. Philip is a grand-old royal but can also be a right royal liability. He is mostly a loyal and quiet presence with the queen who occasionally lets slip the bounds of royal protocol and makes his own special mark. Here are some of his top reported gaffes from years gone by.