Lady Gabriella Windsor looks chic in a white top hat at Royal Ascot

Lady Gabriella Windsor looked chic in a white top hat and a blue patterned dress as she attended the fourth day of Royal Ascot this afternoon.

The daughter of the Queen’s cousin Prince Michael of Kent, 41, paired her statement headpiece with a pale pink clutch bag and matching, pointed toe heels.

She wore a simple silver bracelet on her wrist, and opted for low-key make-up.

Today is the fourth day of the Berkshire horse facing event, and attendees have pulled out all the stops with a colourful array of dresses, over-the-top headgear and shimmering jewellery.

Lady Gabriella, who attended with her financier husband Thomas Kingston, didn’t disappoint in a dazzling blue patterned button-down dress, which gathered at the sleeves.

Mr Kingston was also dressed to impress in a grey top hat, pink tie and fitted tailcoat.

Lady Gabriella Windsor looked chic in a white top hat and a blue patterned dress as she attended the fourth day of Royal Ascot this afternoon

Lady Gabriella, who attended with her financier husband Thomas Kingston, wore a dazzling blue patterned button-down dress, which gathered at the sleeves

Lady Gabriella, who attended with her financier husband Thomas Kingston, wore a dazzling blue patterned button-down dress, which gathered at the sleeves

Other notable arrivals this afternoon include Boris Johnson’s wife, Carrie. 

In a Royal Ascot first, male attendees have been told they can remove their ties today as Britain braces itself for the hottest day of the year so far, with temperatures reaching 34C (93.2F) in some parts of the country. 

Men in all enclosures will be allowed to remove their jackets and ties once the traditional royal carriage procession has ended, usually just after 2pm. 

A Royal Ascot spokesman said: ‘Race goers will be expected to arrive compliant but can remove jackets and ties as the day goes on due to the high temperatures.

‘There is precedent for dress code not being enforced for hot weather and one year, visitors were advised to wear boots if they were using the Royal Enclosure Gardens when they were waterlogged.

‘It’s rare to relax the dress code but common sense has to apply in extremes of temperature or weather conditions, for everyone’s safety and comfort.’

The daughter of the Queen's cousin Prince Michael of Kent, 41, paired her statement headpiece with a pale pink clutch bag and matching, pointed toe heels

The daughter of the Queen’s cousin Prince Michael of Kent, 41, paired her statement headpiece with a pale pink clutch bag and matching, pointed toe heels

Famous faces: Good Morning Britain's Charlotte Hawkins stuns in a red and blue floral ensemble

That's one way to travel: Jenni Falconer shows off her yellow dress while journeying on the tube

Famous faces: Good Morning Britain’s Charlotte Hawkins stuns in a red and blue floral ensemble, while Jenni Falconer shows off her yellow dress while journeying on the tube

Cream of the crop! The Prime Minister's wife Carrie Johnson (pictured right) turned heads when arriving at Royal Ascot in a white ensemble teamed with high heels

Cream of the crop! The Prime Minister’s wife Carrie Johnson (pictured right) turned heads when arriving at Royal Ascot in a white ensemble teamed with high heels

The Queen has two horses running today but is not expected to attend, amid her ongoing mobility issues.

Today’s catwalk included monochrome frocks, flashes of fuschia and floating summer dresses in yellow and greens. Many of those arriving at the main spectators’ enclosure opted for co-ordinating outfits with pals too. 

Plenty of fans adopted a patriotic theme too, to ensure the Platinum Jubilee celebrations continue, with red, white and blue incorporated into their outfits for the day. 

Lady Gabriella’s appearance at Royal Ascot comes amid reports Prince and Princess Michael of Kent are to retire from public life.

Model Rosie Tapner wore a short-sleeved white dress with a patterned bow which she paired with a bolero hat. As temperatures soared she wore her hair in a low bun

Model Rosie Tapner wore a short-sleeved white dress with a patterned bow which she paired with a bolero hat. As temperatures soared she wore her hair in a low bun

Saying yes! A marriage proposal takes place at Royal Ascot, with the groom getting down on one knee to ask the question to his partner, who is dressed in an elegant green dress

Saying yes! A marriage proposal takes place at Royal Ascot, with the groom getting down on one knee to ask the question to his partner, who is dressed in an elegant green dress

Fun friends! Many of those arriving at the main spectators' enclosure opted for co-ordinating outfits with pals too

Fun friends! Many of those arriving at the main spectators’ enclosure opted for co-ordinating outfits with pals too

This year, Prince Michael, the Queen’s first cousin and a fluent Russian speaker with a lineage to Tsar Nicholas II, was forced to sever his ties to Russia after its invasion of Ukraine.

He stepped down as patron of the Russo-British Chamber of Commerce, and handed back an Order of Friendship award, one of Russia’s highest honours.

Michael, who turns 80 next month, and his wife, Marie-Christine, 77, will step down from public life, according to The Daily Telegraph. 

It is understood the retirement will coincide with the prince’s birthday on July 4.

According to the official Royal Family website, Prince Michael is classified as a ‘non-working royal’ and partakes in more than 200 public engagements for the not-for-profit sector, which are funded by his own household, rather than the taxpayer.

A rainbow of colour! Dusting off their finery, guests pulled out all the stops as they attended the fourth day of the Berkshire horse racing event, opting to wear a colourful array of dresses

A rainbow of colour! Dusting off their finery, guests pulled out all the stops as they attended the fourth day of the Berkshire horse racing event, opting to wear a colourful array of dresses