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Prince Harry, Duke of Sussex
The Queen, Prince Philip and Prince Harry were among those attending the ceremony.
The Duke of Sussex met youngsters at Oxford Children's Hospital and was presented with the gift.
Prince Harry is visiting Oxford Children's Hospital after the birth of his first child Archie last week.
The Duke of Sussex has been meeting patients at the hospital, a purpose-built centre for the treatment of children and young adults, based at the John Radcliffe site.
Prince Harry will be spending the day in Oxford praising the work of the city's children's hospital and other important institutions.
The visit by the Duke of Sussex, who became a father for the first time last week, will highlight the positive work under way in the area to support the needs of children, young people and adults.
Prince Harry will be meeting patients at Oxford Children's Hospital, a purpose-built centre for the treatment of children and young adults, based at the John Radcliffe hospital site.
The duke will then visit Oxsrad Disability Sports and Leisure Centre, opened by his mother Diana, Princess of Wales, in 1989, where he will meet people who use its facilities.