Zara Tindall channels Eliza Doolittle in a stylish £1500 dress with pink buttons and a fascinator as she shields under an umbrella to support cousin William at Buckingham Palace garden party

Zara Tindall channeled her inner Eliza Doolittle in a stunning white dress at the Buckingham Palace garden party on Tuesday.

The royal, 43, joined her cousins ​​Princess Beatrice and Princess Eugenie – as well as the Prince of Wales, who made his first appearance at a garden party this summer.

It was Zara who wore the standout outfit of the afternoon, wowed by a £1,500 Laura Green London Isobel dress, in white, with added pink buttons.

To match her ensemble, she added a stylish Rosa Boater hat and pink suede heels.

Zara was stylish but practical in bad weather. She added heel stoppers to the bottom of her shoes to keep her from sinking into the ground, while a black umbrella protected her from the rain – looking like it was always meant to be part of the Look.

The stunning look featured pink button detailing, a Rosa Boater hat and pink suede heels

Prince William didn’t let the weather spoil his fun at Buckingham Palace

Zara seemed to take inspiration from Eliza Doolittle. Depicted Audrey Hepburn as the character in the 1964 film

Zara wore the standout look of the afternoon, dazzling in the Laura Green London Isobel dress in white, with added pink buttons

She was also accompanied by her husband Mike Tindall, who looked handsome in a suit and top hat.

The display seemed to convey a quintessential British identity as the royals shielded themselves from the rain – but crowds still flocked to the ‘summer’ garden party.

William’s presence, alongside the king’s nieces and nephew, will inevitably be seen as a sign of family unity at a difficult time.

The cousins ​​showed even more unity by coordinating their stylish ensembles, with Eugenie and Beatrice also opting for a pink and white color scheme to match Zara.

The 75-year-old Charles has a full agenda with public appointments except for one day this week, despite his wife, Queen Camilla, often urging him to take it easy.

The pair enjoyed a visit to the Chelsea Flower Show on Monday, where they toured the garden – with Camilla even revealing she had watched the first episode of Bridgerton.

As the king continues to undergo treatment, each assignment is carefully tailored to balance his desire to work and his health.

From 3 p.m., guests began filing in to enjoy the tea tents and palace grounds, despite the gray skies and rain.

Zara Tindall (centre) with Mike Tindall (left) at the Sovereign’s Garden Party at Buckingham Palace

Despite the bad weather, the party went ahead as guests took shelter under parasols

Zara managed to be stylish but practical in bad weather, adding heel stoppers to the bottom of her shoes to prevent them from sinking into the ground

Zara channeled My Fair Lady with the look, which captivated the crowd

Prince William was accompanied by the Duke and Duchess of Gloucester, along with the young royals

Sister action! Princess Beatrice and Eugenie got together for the Sovereign’s Garden Party at Buckingham Palace

Cousins ​​come out! Peter Phillips was also there to support William

Around 8,000 people are invited to each party, nominated by sponsors including Lord-Lieutenants, government departments, charities, the military and faith groups.

The royal party will arrive, as usual, at 4pm on the terrace at the back of the palace via The Carnarvon Room.

They stood for the national anthem before being escorted to the lawn before walking through various ‘alleys’ accompanied by gentleman ushers to meet as many members of the public as possible.

During the garden party, William will meet guests from a number of patronages, military connections and passion projects of both himself and his wife, including his Homewards initiative to tackle homelessness, RAF Valley (the Welsh base where the Prince worked as an RAF Search and Rescue pilot ), Swim England and tenants in the Duchy of Cornwall.

The inclusion of people with links to the Princess of Wales suggests that when planning for the garden party began last year, Kate was expected to attend.