Kate Middletonis going fromsneakers in a nature gardento dressing up for a Buckingham Palace garden party!

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Queen Elizabeth Catherine Duchess of Cambridge

Kate Middleton and Prince William.DOMINIC LIPINSKI/AFP/Getty

Britain’s Prince William, Duke of Cambridge and Britain’s Catherine, Duchess of Cambridge attend the Queen’s Garden Party at Buckingham Palace in central London on May 21, 2019

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Britain’s Queen Elizabeth II attends the Garden Party at Buckingham Palace in central London on May 21, 2019

Meanwhile,Prince William, 36, looked dapper in a formal suit and top hat. He also carried an umbrella to provide some shade on the sunny day.

Kate Middleton and Prince William.BEN STANSALL/AFP/Getty

Britain’s Prince William, Duke of Cambridge, (C) and Britain’s Catherine, Duchess of Cambridge, (L) meet guests at a garden party in the grounds of Buckingham Palace in central London on May 21, 2019

The monarch and the future queen consort have been spending a lot of time together lately. On Monday, Kate and the Queen looked like old pals as Kateshowed her grandmother-in-law around her Chelsea Flower Show garden.

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Queen Elizabeth II is shown around ‘Back to Nature’ by Prince William and Catherine Duchess of Cambridge

Kate last attended a garden party at Buckingham Palace on May 16, 2017. (She likely skipped the seasonal events last year due to the recent birth ofPrince Louis.)

Each year,Queen Elizabethhosts up tothree garden partieson the grounds of Buckingham Palace, as well as one at the Palace of Holyroodhouse in Scotland.

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But for her first party of the season on May 15, the Queen asked sonPrince Charlestostep in as host– with wife Camilla, Duchess of Cornwall, and sister Princess Anne also in attendance. The monarch has been slowly handing over certain royal duties to senior members of the royal family over the past few years. She’s given several of her patronages to Prince William,Prince Harryand Kate, and Charles has begun attending many events in place of his mother. He hosted over 500 engagements in 2018 — more than William and Harry combined.

Garden parties have been held at Buckingham Palace since the 1860s as a way to recognize and reward public service.

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According to the palace, around 27,000 cups of tea are served and 20,000 sandwiches and 20,000 slices of cake are consumed during the event.

Buckingham Palace garden party.BEN STANSALL/AFP/Getty

Guests attend a garden party in teh grounds of Buckingham Palace in central London on May 21, 2019

Guests also adhere to a dress code. Gentlemen wear morning dress or lounge suits, while women wear day dresses, typically accessorized with hats or fascinators.

The next palace garden party will take place on May 29. The Holyroodhouse party will occur on July 3.

source: people.com