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Prince Harry today (June 4) unveiled a plaque outside Westminster Abbey, which commemorates his brother Prince William's wedding on April 29, 2011.
The plaque will feature as a stop on two London walkway routes - The Jubilee Walkway, which was set up to mark the Queen's Silver Jubilee, and The Jubilee Greenway, which commemorates the Diamond Jubilee.
The Outdoor Trust, which designs heritage trails, is also planning similar walkways across the Commonwealth, overseas territories and British protectorates in recognition of the Queen's role as Head of the Commonwealth since her accession to the throne.
Earlier in the day Harry attended a service alongside other members of the Royal Family, celebrating the 60th anniversary of the Queen's coronation at the abbey.