The Duchess revealed that the 2-year-old Prince has his own tennis racket and enjoys the sport.
Spanish monarch attended WHO Second Global Conference without King Felipe VI.
The Wimbledon finalist beamed as she posed with Duchess of Cambridge after beating Elena Vesnina.
Duchess looked on trend in tennis ball yellow shift as she watched Serena Williams beat Elena Visnina.
The Duchess of Cambridge makes a striking entrance at the Natural History Museum.
Singer, who was rumoured to be dating Prince Harry, looked elegant in white for the men's quarter-finals.
The 31-year-old prince was on royal duties, supporting projects and promoting sports.
Prime minister Justin Trudeau asked the royals to attend ahead of Canada's 150th anniversary.
King and Queen of Spain presented Iberdrola Foundation scholarships in the Spanish capital.
President Mauricio Macri of Argentina and his wife Juliana visit Belgium on a tour of EU states.
Olive Middleton championed women's rights and helped save lives during First World War.
From beaded eveningwear to vibrant dress coats, the queen's wardrobe goes on display at Buckingham Palace
South African socialite has opened up about her seven year relationship with Prince Harry.
Unfaltering style of a 20th century icon – the people's princess who inspired female royalty to buck the trend.
US first lady credited the Spanish monarch at the Let Girls Learn conference.
Duchess of Cambridge looked immaculate the morning after attending a vigil in Thiepval, France.
The Duchess of Cambridge joined her husband William and brother in law Harry at the moving vigil in France
Young royals said to be 'moved' by poignant vigil marking the WWI battle at the Thiepval Memorial in France.
The Queen and Prince Philip to attend vigil in Westminster Abbey for 100th anniversary.
Duchess of Cornwall had day out visiting livestock with the Prince of Wales.
Joined husband King Felipe VI of Spain at Volkswagen's 50th anniversary in Spain.
Apartment 8 in Kensington Palace, where Diana raised her brood, has been turned into charity headquarters.
The charity concert held at Kensington Palace on 28 June aimed at raising funds for Harry's charity, Sentebale.
Monarch had separate meetings with First Minister Arlene Foster and Deputy First Minister Martin McGuinness.
Old friends were delighted to attend the children's choir practice on Monday (27 June).
Her Majesty's Awards honours young people for exceptional leadership in the community.
The Prince attended a rugby programme in Stockport on 21 June to promote the benefits of sports.
On Wednesday, Queen Elizabeth visited a Liverpool hospital along with her husband Prince Philip.
The fundraising event was in aid of East Anglia's Children's Hospices (EACH), of which the Duchess is patron.
Highlights of Prince William's relationship with Kate Middleton since they met at St Andrews.