In fact, Colleen Harris, who used to work as a press secretary for King Charles and his sons, spoke to People magazine about the Prince's decision to attend.
According to Harris, the King would have been disappointed if Harry hadn't been there to support him and she believes that it was the right decision.
At the ceremony, Prince Harry was seated in the third row with Princess Eugenie and Princess Beatrice, while his brother Prince William and his family sat in the first row.
Despite being in close proximity, the two brothers reportedly did not speak to each other during the event. Following the coronation, Harry left for the airport and returned to California to celebrate his son Archie's fourth birthday with his wife Meghan and daughter Princess Lilibet.
Despite the tensions between the two brothers, royal experts believe that King Charles was pleased that Prince Harry attended his big day and supported him alongside other members of the royal family.