Picture: Prince Harry lays a wreath on the pitch.
Prince Harry met the descendants of two England captains who died in the war, as he laid the wreath on the eve of the centenary of the First World War Armistice.
Lancelot Slocock and Ronnie Poulton were among 27 England players who died in the conflict, with 13 New Zealand players among those who died.
At least 750,000 British soldiers were killed during World War One and more than 188,000 troops from British colonies were also killed.
Prince Harry and Winston Peters, New Zealand's deputy prime minister, laid wreaths before the Last Post was played and a minute's silence was observed, as part of England Rugby's commemorations of the 100th anniversary of the conclusion of the war.
The Duke earlier met Jack Davis, the nine-year-old great great grandson of Lancelot Slocock, who captained England against Scotland in 1908. He was accompanied by his grandfather Richard Slocock.
He also met 10-year-old Max Garnett, whose father, James, is the great nephew of Ronnie Poulton.
"He was very interested in our relatives who died in the First World War," Mr Garnett said.
"It's very, very emotional. His soil is buried on the side of the pitch, so every England home team will run over his soil every time they play."
The boys were selected as mascots for the match.