In Pictures: The Duchess of Cambridge over the years

Kate celebrates her 37th birthday on Wednesday.

As the Duchess of Cambridge celebrates her 37th birthday on Wednesday, here’s a look back at Kate’s royal life so far:

– The Engagement

Kate Middleton became engaged to Prince William in 2010 when she was 28 years old, after months of speculation.

Royal engagement — Kate and William during their engagement photocall in the State Apartments of St James’s Palace in 2010 (John Stillwell/PA)

Royalty – Prince William Graduation – St Andrews University — Kate Middleton at her graduation ceremony in 2005 (Mike Dunlea/Daily Mail/PA)

– Getting to know the ropes

In February 2011, Kate and William carried out their first official public engagement after announcing their engagement.

Prince William and Kate Middleton visit Anglesey — Kate with William at the naming ceremony for the RNLI’s new Atlantic 85 Lifeboat Hereford Endeavour, at Trearddur Bay (Phil Noble/PA)

Future royal Kate was at ease, laughing and smiling as she poured champagne over a lifeboat as part of the ceremony.

– The wedding

Kate and William tied the knot in front of 2,000 guests and a television audience of millions in London’s Westminster Abbey on April 29 2011.

The Royal Wedding — Prince William and Kate Middleton during their wedding at Westminster Abbey (Dominic Lipinski/PA)

Miss Middleton became an HRH, the Duchess of Cambridge and a future Queen after saying her vows.

– The Family

Kate and William were overjoyed to welcome Prince George in 2013, and went on to add to their young family with Princess Charlotte in 2015 and then Prince Louis last year.

The family of five posed together at Anmer Hall in an image used for their 2018 Christmas card.

Birth of Prince George of Cambridge — The Duchess of Cambridge holding newborn Prince George outside the Lindo Wing of St Mary’s Hospital in London (Dominic Lipinski/PA)

– The Tours

Kate’s first official overseas tour saw the Cambridges travel to Canada in June 2011 and then onto California in the US.

Duke and Duchess of Cambridge in Canada – Day Two — Kate, wearing the colours of the Canadian flag, in Gatineau, Quebec, on Canada Day 2011 (Arthur Edwards/The Sun/PA)

Since then the couple have travelled to the Far East and South Pacific in honour of the Queen’s Diamond Jubilee, taken Prince George to New Zealand and Australia, and toured India and Bhutan.

Royal tour of the Far East and South Pacific – Day Eight — The Duke and Duchess of Cambridge drink from a coconut from a tree planted by the Queen during a visit to a Tuvalu village in 2012 (Arthur Edwards/The Sun/PA)

Royal tour of the Far East and South Pacific — Kate visiting the Assyakirin Mosque in Kuala Lumpur in 2012 (Tim Rooke/PA)

Royal visit to India and Bhutan – Day 1 — The Duke and Duchess of Cambridge playing football during a visit to the Banganga Water Tank in Mumbai, India in 2016 (Arthur Edwards/The Sun/PA)

Royal visit to India and Bhutan – Day 6 — The duke and duchess after their trek to the Tiger’s Nest monastery near Paro, Bhutan in 2016 (Joe Giddens/PA)

Royal visit to Germany – Day One — William, Kate, George and Charlotte depart from Chopin airport, in Warsaw during their tour to Poland and Germany (Dominic Lipinski/PA)

– The big events

The duchess joined the Queen and the royal family at the Diamond Jubilee celebrations in 2012.

Other festivities have included the Queen’s 90th birthday, as well as annual favourites including Trooping the Colour, state banquets, diplomatic receptions and the Order of the Garter parade.

Diamond Jubilee celebrations – Thames Pageant — The Duchess of Cambridge with the Duchess of Cornwall on the Spirit of Chartwell for the Diamond Jubilee Pageant on the River Thames (Stefan Rousseau/PA)

Queen’s 90th birthday celebrations — The Duchess of Cambridge, the Duke of Edinburgh, Peter Phillips and the Queen watch entertainment for the Patron’s Lunch in The Mall, London in honour of the monarch’s 90th birthday (Toby Melville/PA)

The duchess with the royals including the Duchess of Sussex at the 2018 Trooping the Colour celebration (Yui Mok/PA)

– Charity work

Kate is now patron of 17 charities and organisations, and has focused her charity work on helping children have the best possible start in life, particularly surrounding their mental health.

She has worked closely with the Anna Freud National Centre for Children and Families, and Place2Be, which provides early intervention mental health support in schools.

Royal visit to Reach Academy Feltham — The duchess visiting the Reach Academy Feltham, in London, a school working in partnership with Place2Be in January 2018 (Eddie Mulholland/Daily Telegraph/PA)

In 2017, the duchess championed the Heads Together mental health campaign with William and Prince Harry.

Virgin Money London Marathon 2017 — Kate during a reception for runners from Team Heads Together at Kensington Palace in London, as they prepare for the 2017 Virgin Money London Marathon (Chris Jackson/PA)

Prince Harry and Meghan Markle (now the Duke and Duchess of Sussex) and Kate and William during the first Royal Foundation Forum in London in February 2018 (Chris Jackson/PA)