William walks in funeral procession in honour of King Harald V of Norway

William formed part of the walking procession behind the much-loved monarch’s coffin, which was slowly drawn on a gun carriage through the streets from the Royal Palace to the funeral in Oslo Cathedral on Wednesday.Heir to the throne William, who was next to his aunt the Princess Royal, joined a large ensemble of foreign royals as they made the journey on foot in honour of the late king.The coffin carrying King Harald V arrives for his funeral ceremony at Oslo Cathedral (Heiko Junge/AP)APAlso processing against a backdrop of sombre music by the military bands were Prince Albert II and Princess Charlene of Monaco, the Kings and Queens of Spain, Sweden, Denmark, the Netherlands and Jordan, and Japan’s Crown Prince Akishino and Crown Princess Kiko.Ukraine’s president Volodymyr Zelensky walked two rows behind William among the political leaders.Directly behind the coffin was Norway’s new King Haakon VIII, with Crown Princess Ingrid Alexandra and other members of the family.The widowed Queen Sonja, wearing a black veil, and the new Queen Mette-Marit followed by car.Norway’s Prince Sverre Magnus, King Haakon VIII, Crown Princess Ingrid Alexandra and Princess Martha Louise walk behind the coffin of King Harald V (Cornelius Poppe/AP)APThousands lined the streets, crowded behind barriers, to witness the historic occasion and see the coffin move past, draped in the red Norwegian royal standard and adorned with white flowers.Harald, who was King Charles III’s second cousin once removed, died on August 28 at the age of 89.He was Europe’s oldest monarch and was known for his warmth, humour and informal style, and hailed as an inclusive “people’s king” who modernised the Norwegian monarchy during his 35 year-reign.Charles paid a touching tribute to his “dear cousin” and “much-loved kinsman and friend” after the news of Harald’s death was announced.Liechtenstein’s Prince Alois and Princess Sophie, Japan’s Crown Prince Akishino and Crown Princess Kiko, the Prince of Wales and the Princess Royal during the procession (Markus Schreiber/AP)APIn a message of condolence, he praised his “unwavering dedication” and his “kindness, compassion and deep sense of duty echoed from across the sea and across the decades”.Under royal precedent, the British sovereign does not traditionally attend funerals of other heads of state.The late Queen Elizabeth II and King Harald were second cousins. They shared the same great-grandparents, King Edward VII and Queen Alexandra.Read MoreAnne attended in a personal capacity as godmother of King Haakon.