Zara Tindall champions Australian fashion before supporting cousin Prince William at conservation event

Zara Tindall has thrown her support behind Australian fashion once again by appearing at an event in London alongside designer Rebecca Vallance.

The 44-year-old, who is Princess Anne's daughter, wore the 'Narcissa mini dress' from the Australian brand's new collection.

She was photographed alongside Vallance at a party inside Japanese restaurant Aki London, hosted by the designer.

Soon after, Zara was seen at the Savoy Hotel, where she attended the Tusk Conservation Awards in support of her cousin Prince William.

Zara, who is married to former rugby star Mike Tindall, has become friends with Vallance through her many years of wearing the Australian's designs.

In July, Vallance told nine.com.au Zara had been "buying our clothes years ago" and was one of the first royals to do so.

"We became friends with her stylist [Australian Annie Miall] and I was lucky enough that she attended our relaunch in Harrods in London a few years ago," Vallance said.

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"Zara was just such a delight – so down to earth and so lovely.

"Since then we've been collaborating together. We love working with them. Zara's a really lovely lady."

The Sydney-based designer now has a long list of royal clients including Princess Beatrice and Princess Eugenie and her influence is spreading to European royalty.

Recently, the heir to the Belgian throne Princess Elisabeth wore the 'Estella midi dress' to an event with her mother, Queen Mathilde.

"It's always such a incredible moment to see anyone from the royal family wearing your pieces," Vallance said.

"We love dressing the royals, we've been doing it for a long time."

While Zara's dress, which retails for $649, is still available in most sizes, it has already sold out in a 12.

Vallance said once a royal was seen in one of the brand's pieces, the item often sells out.

"There's definitely a very strong correlation between the royals and sales," Vallance said.

"The second the images are released to the public and in the media, you definitely do see a correlation between what they've worn and what's sold online or in our stores. There's no doubt about it.

"But it's more that we're very honoured to be dressing them rather than it being a commercial thing."

After the event with Vallance, Zara moved across to the Tusk Conservation Awards which celebrates the workers safeguarding Africa's habitat and animals.

Prince William has been royal patron of the Tusk Trust wildlife charity since 2005 and attended this year's event without his wife, the Princess of Wales.

But his cousin, Zara, was on hand to support him along with her husband Mike, as were actor John Cleese and Rolling Stones guitarist Ronnie Wood, who are both ambassadors for the charity.

Lady Eliza and Amelia Spencer, the nieces of the late Diana, Princess of Wales, were also among the guests.

The future king told Cleese, who played Basil Fawlty in the comedy series Fawlty Towers: "My children have just discovered Fawlty Towers, they literally love it, we've been having a lot of family laughs".

He said he'd been "reminiscing" and "reliving" the popular 1970s show "all over again with the children watching – it's brilliant".

In a speech at the awards, Prince William said his recent visit to Brazil had shown him the fight against climate change was more urgent than ever.

He said: "My visit to Brazil earlier this month for the Earthshot Prize and for Cop30 reinforced my sense of urgency. It reminded me that when we unite behind a shared purpose, we can accelerate solutions that make both people and planet healthier".

"Africa has the world's second-largest rainforest and like the Amazon, the Congo Basin rainforest is under increasing threat from human exploitation.

"Humanity thrives when nature is given the space to provide us with the clean air, water and food that we all require.

"That is why the insight and expertise of the Tusk awards winners should inspire us to drive change. We must continue to amplify their voices and support their vital work."

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