Prince William and Kate Middleton's relationship timetable (Image: EXPRESS) Ms Nicholl stated that Prince William and Prince Harry's relationship had come under strain in 2020 but that tensions seemed to ease as the brothers exchanged presents over Christmas. The royal commentator warned that there is still a big distance between the Dukes and their wives Kate, the Duchess of Cambridge and Meghan, the Duchess of Sussex but they will come together for the "greater good" of the monarchy. Ms Nicholl said: "I want to make it clear that this friendship or relationship is not what it once was. "It has come under unbearable strain.