Duke of Westminster wedding LIVE: Hugh Grosvenor and his bride Olivia Henson share a kiss as they emerge as husband and wife from Chester Cathedral

With the bride and groom safely on their way back to Eaton Hall, the lady behind the gown the Duchess of Westminster wore for her wedding to the Duke of Westminster now looks a little more, well, relaxed.

Couture bridal designer Emma Victoria Payne had to stop her own creation from billowing up as Olivia Henson entered and exited Chester Cathedral...

The Duke of Westminster's mother, Natalia Grosvenor, looks a vibrant vision in pink.

The 65-year-old socialite and philanthropist, who lost her husband Gerald in 2016, is wearing a striking fuschia trouser suit with co-ordinating fascinator in varying shades of pink for her only son's big day.

The Duchess of Westminster has four children with her late husband: Tamara, Hugh, Viola and Edwina.

Chester Police have moved quickly to remove the apparent culprits behind the orange smoke from the scene. Two silver-haired Just Stop Oil protesters, 73 and 69, let off a fire extinguisher containing orange powder paint in the direction of the wedding party just as guests emerged from the cathedral.

According to Just Stop Oil, the two women are Polly, 73, a care worker from Norfolk, and Sheila, 69, a former NHS nurse from Bristol.

Television presenter Dan Snow, who is married to Lady Edwina Grosvenor (pictured left in pale pink below), is among the family members and guests straining to see the cause of the orange smoke that appears to have been fired in protest in the direction of the cathedral...

Moments after the groom's sisters, Lady Edwina Grosvenor and Lady Viola Grosvenor, emerged from the cathedral, a plume of orange smoke has been let off in the direction of the ancient landmark from the direction of the gathered crowds...

The Duke of Westminster's family members - including his sisters Lady Edwina Grosvenor (pictured below wearing pale pink) and Lady Viola Grosvenor (seen in red) - have just exited the cathedral.

The siblings cut a stylish pair in their wedding outfits, with both smiling broadly in the direction of the crowds who've waited patiently to see the wedding party...

Clearly enraptured in the glow of being newlyweds, the new Duke and Duchess of Westminster share a joke as they make their way to the vintage Bentley - made in 1930 for the Bentley family - that will cruise them four miles south to the Eaton Estate for their wedding reception...

The bride's custom-made Emma Victoria Payne gown featuring floral motifs is once again causing a minor headache for the new Duchess of Westminster's bridesmaid and the dress designer herself (seen wearing purple below).

The free-spirited couture billows up every time a bit of breeze arrives...but thankfully the newlyweds appear to be seeing the funny side.

Prince William is seen grinning broadly as he leaves the ceremony of his close pal, clutching an order of service in his hand.

The Prince of Wales is wearing a smart morning suit with a blue tie and pin for the service, with a single white rose pinned to his lapel.

The heir to the throne, attending the wedding without the Princess of Wales, who's still recovering from treatment from cancer, and his three children, Princes George and Louis, and Princess Charlotte, is chatting to fellow guests in the Cheshire sunshine.

Princess Eugenie smiles at the hundreds of well-wishers gathered as she leaves the ceremony at Chester Cathedral.

It's thought the royal, 34, will now join the newlyweds at a private reception at Eaton Hall, the couple's home - which is just a 15-minute drive away by car...

The newlyweds have just emerged from Chester Cathedral as husband and wife...aaah!

The Duke of Westminster and his new bride share a kiss after taking their vows and look relaxed and thrilled as they wave to the crowds.

The couple's trio of young bridesmaids are following closely behind.

As the couple say their vows in ancient Chester Cathedral, the man tasked with pronouncing them man and wife is the Dean of Chester, the Very Revd Dr Tim Stratford (pictured left below).

He will lead and officiate the wedding service while the Bishop of Chester, the Right Revd Mark Tanner, (pictured right) will preach. And today's prayers are being led by the Revd Canon Rosie Woodall.

While the ceremony is underway, let's take another look at Princess Eugenie's outfit.

The King's niece, 34, looked radiant in an olive pleated dress as she arrived earlier at Chester Cathedral.

The mother-of-two - daughter of the Duke and Duchess of York - teamed her stunning V-neck dress with a chic cream fascinator as she arrived at the nuptials with a friend.

Olivia Henson's bridesmaids looked adorable as they prepared to follow the bride into the cathedral. The three girls wore pretty white floral headbands, simple white gowns to the knee - without tights - and pairs of black velour ballet pumps adorned with bows. Each carried a simple wildflower posy too.

As the ceremony gets underway, a trio of teenage choristers are among those performing at the Duke of Westminster's wedding to Olivia Henson.

Talented vocalists Grace Crook, Isla Mills and Cassie Lounds, who all attend The Queen’s School in Chester, spoke earlier this week of their delight at singing for the happy couple - and guests such as Prince William, saying they were 'thrilled' at the opportunity, if not a little nervous.

While there's nothing low-key about the stunning Emma Victoria Payne bridal gown Olivia is wearing...the bride appears to take a moment to soak up her big day.

Before she turns and heads down the aisle - and her new life as the Duchess of Westminster - she takes a moment to acknowledge the crowds who've turned out to enjoy the couple's big day. This certainly feels like a royal wedding in all but name.

The Duke of Westminster's bride is wearing a custom-made Emma Victoria Payne gown featuring floral motifs from her ancestor's veil and the Faberge Myrtle Leaf Tiara for today's service. The designer is attending the service.

The tiara has been in the Grosvenor family since its creation in 1906, while the bride's stunning dress featured floral motifs and edgings from Olivia’s great great grandmother’s veil from around 1880.

The tempermental English weather sees the bride-to-be's train billow wildly as she prepares to enter the cathedral...but disaster is quickly averted by the designer, and Olivia Henson's father Rupert Henson takes his daughter's arm to walk her down the aisle...

The 31-year-old bride-to-be arrives to audible gasps from the crowds. Wearing a beautiful gown with long lace train, she also offers a glimpse of a pair of blue velour heels adorned with a bow...

The soon-to-be Duchess arrives in a vintage 1930 Bentley...

The Duke's car of choice is perhaps not the most likely choice - but does reflect the rural communities around Cheshire, where he resides...a trusty vintage green Land Rover!

for the wedding a vintage green Land Rover...

There's a heady air of anticipation now as the gathered crowds - in their hundreds, possibly thousands - await the soon-to-be Duchess.

Many spectators have Union Jacks, and there's a distinct regal feel to the atmosphere...

Hugh Grosvenor, looking immaculate in his morning suit, with a simple white flower pinned to his lapel, is seen shaking the hand of Revd Dr Tim Stratford - who will officiate - as he makes his way into church. His best man strides alongside him...

The wedding attire of the 400-strong guest is already proving a colourful affair - perfect for a blue-sky day in Chester - with bold fascinators, floral patterns and even a heart-shaped pair of sunglasses spotted...

The Dean of Chester, the Very Revd Dr Tim Stratford, is on hand to calm any pre-wedding jitters, offering a warm handshake to the groom, 33, ahead of his big day.

A spokesperson for the couple said earlier today: 'It means a lot to them to marry in Chester Cathedral, especially given the Grosvenor family’s long and close personal connection to both the Cathedral and the city of Chester'.

The 7th Duke, 33, universally known as 'Hughie' to aristocratic friends, offers a wave to the hundreds of Cestrians - as people from Chester are known - gathered as he enters the cathedral to await his bride...

The daughter of Prince Andrew and Sarah Ferguson is among the 400 guests arriving at Chester Cathedral ahead of the midday marriage between the Duke and his bride, Olivia Henson...the Princess offered a wide smile to well-wishers as she entered the cathedral.

A very proud Prince William was spotted arriving at his billionaire friend the Duke of Westminster's society wedding of the year to Olivia Henson along with Princess Eugenie shortly after 11am...