Prince William shares new video after Kate Middleton's latest honour

Prince William, who has been committed to supporting people's mental health and suicide prevention for many years, shared a meaningful post after Buckingham Palace's latest honour to his cancer-stricken wife Kate Middleton on Friday.

The Prince and Princess of Wales' social media accounts have shared a very touching clip to show just how important the Duchy of Cornwall’s Mental Health Strategy is.

The heartfelt clip comes hours after Princess Kate's photos displayed at The King’s Gallery at Buckingham Palace along with the never-before-seen portraits of the other members of the royal family, including a young Prince Charles and Princess Anne.

The King's gallery lights up an engagement photograph of Prince William and Princess Kate, as well as one from their wedding day.

The photos were captioned: "Never-before-seen portraits of the Royal Family, including a young Prince Charles and Princess Anne photographed by the future Lord Snowdon, will go on display today at The King’s Gallery, Buckingham Palace.

"Royal Portraits: A Century of Photography charts the evolution of royal portrait photography from the 1920s to the present day through more than 150 items from the Royal Collection and Royal Archives."