Prince William is said to be 'absolutely furious' with his estranged brother Prince Harry and Meghan Markle amid their Nigerian tour, which is being dubbed an 'unofficial royal tour'.The Duke and Duchess of Sussex visited the African country to promote the Invictus Games but they've come under fire. According to a royal expert, both Prince William and King Charles aren't happy with the couple amid the 'unofficial' tour and believe the trip is a "bold statement" that show the pair, who controversially decided to step back from their royal duties in 2020, "refuse to accept they're no longer working royals." Royal expert Tom Quinn told The Mirror: "William is absolutely furious and determined to find a way to stop this happening in future.