When a monarch dies, the rituals of continuity begin — not only within the nation that mourns, but across the web of dynasties and diplomatic traditions that quietly hold Europe's royal order together. Prince William will travel to Oslo on September 9 to attend the funeral of King Harald V of Norway, representing his father King Charles III, who by longstanding protocol does not attend the funerals of fellow heads of state. Harald, who died at 89 after 35 years on the throne, was a cousin to the late Queen Elizabeth II and a figure celebrated for bringing warmth and modernity to his institutio