Prince William booted up to train on Palace grounds while England's two oldest amateur football clubs played a historic match.
The Duke of Cambridge trained with the Queen's Household team while the game was underway.
More top news
A total of 8,648 sailors died during the largest naval engagement during the First World War, which marks its centenary on Tuesday.
The figures by the Global Slavery Index are a third higher than previously thought.
Sara Di Pietrantonio, 22, died in Rome on Sunday.