'Absolutely thrilled' William and Kate say they cannot wait to meet new nephew as they attend event in London - and Wills welcomes Harry into 'the sleep deprivation society that is parenting'

  • The Duke and Duchess of Cambridge attended a joint engagement in Greenwich, south London, today
  • Couple launched the inaugural King's Cup charity regatta, which they will both compete in this summer
  • Proud uncle William said he was 'absolutely thrilled' about the arrival of Harry and Meghan's son yesterday 
  • The Duke and Duchess of Sussex welcomed a baby early yesterday morning but have not revealed his name 

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The Duke of Cambridge revealed he is 'absolutely thrilled' for the Duke and Duchess of Sussex following the birth of their son yesterday. 

William, 36, shared his excitement about his nephew's arrival as he joined Kate, 37, to launch the inaugural King's Cup Regatta at the Cutty Sark, in south-east London today.

The proud uncle told well-wishers he is 'looking forward' to meeting his nephew 'in the next few days' once 'things have quietened down'. He added jokingly: 'I'm very pleased and glad to welcome my own brother into the sleep deprivation society that is parenting.' 

Kate, who looked chic in a nautical-inspired outfit for the outing, shared her husband's delight, saying: 'It's such a special time, obviously with Louis and Charlotte just having had their birthdays, it's such a great time of year to have a baby. Spring is in the air.'

Baby Sussex arrived at 5.26am on Monday, weighing 7lb 3oz. The Duke and Duchess of Cambridge revealed they do not yet know the baby's name.  

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The Duke of Cambridge said he was 'absolutely thrilled' about the birth of the Duke and Duchess of Sussex's son, adding he was 'looking forward to seeing them in the next few days when things have quietened down'

The Duke of Cambridge said he was 'absolutely thrilled' about the birth of the Duke and Duchess of Sussex's son, adding he was 'looking forward to seeing them in the next few days when things have quietened down'

The Duchess of Cambridge, elegant in a Breton stripe top and £150 LK Bennett trousers, said it is 'such a special time' for Harry and Meghan as new parents
William and Kate revealed they do not know Baby Sussex's name

The Duchess of Cambridge, elegant in a Breton stripe top and £150 LK Bennett trousers, said it is 'such a special time' for Harry and Meghan as new parents. William and Kate revealed they do not know Baby Sussex's name 

Join the navy like Kate in pants by L.K. Bennett

We're all waiting with bated breath to see the Duchess of Sussex and the newest member of the Royal Family, but today we were treated to an appearance of his auntie and uncle instead!

The Duke and Duchess of Cambridge launched The King's Cup Regatta in London, and Kate certainly embraced the nautical theme. Her navy pants are a new addition to her wardrobe, and we love the contrast button detailing.

They're from L.K. Bennett but sadly they have now sold out although you can shop the brand by clicking right. They look very smart with a Breton striped knit, blocky court shoes and a red clutch bag on Kate, but you could totally add a white T-shirt and sneakers for a modern approach to tailoring.

Or knock their socks off in a pair of navy pants from our edit below instead.

* PRICES MAY NOT BE AS ADVERTISED
The Duchess of Cambridge received a posy of flowers on her arrival at the Cutty Sark, where she and William launched the inaugural King's Cup regatta. The couple will go head-to-head in the sailing race off the Isle of Wight this summer

The Duchess of Cambridge received a posy of flowers on her arrival at the Cutty Sark, where she and William launched the inaugural King's Cup regatta. The couple will go head-to-head in the sailing race off the Isle of Wight this summer

The Duke and Duchess of Cambridge arrived together for the joint engagement, which will see them announce a new sailing race
Kate cut a stylish figure as she arrived at the Cutty Sark today

The Duchess of Cambridge, pictured today, said it is a 'great time of year' to have a baby following Baby Sussex's arrival 

Asked how he was feeling, the Duke of Cambridge, pictured with the Duchess of Cambridge at the event, said said: 'I'm very pleased and glad to welcome my own brother into the sleep deprivation society that is parenting.' 

The Duchess of Cambridge donned a Breton striped top and £150 high waist trousers by LK Bennett for the outing
Kate brought a splash of colour to her look with a red bag for the outing

Speaking today, the Duchess of Cambridge said it is 'daunting' becoming a parent but is thrilled for Harry and Meghan. The engagement, pictured, is the first time William and Kate have been seen since the birth of Baby Sussex yesterday

Well-wishers turned out to greet the couple as they arrived at the Cutty Sark in south London today. William and Kate launched a new charity regatta, which they hope will become an annual event to benefit causes close to their hearts

Well-wishers turned out to greet the couple as they arrived at the Cutty Sark in south London today. William and Kate launched a new charity regatta, which they hope will become an annual event to benefit causes close to their hearts

The Duke and Duchess of Sussex welcomed a baby at 5.26am on Monday, weighing 7lb 3oz
The Duke of Sussex later appeared on camera (right) to share his joy and thank well-wishers for their support

The Duke and Duchess of Sussex welcomed a baby at 5.26am on Monday, weighing 7lb 3oz. The Duke of Sussex later appeared on camera (right) to share his joy and thank well-wishers for their support

Uncle William shares his joy on his nephew's arrival 

The Duke and Duchess of Cambridge shared their delight following the arrival of Baby Sussex yesterday morning. 

Asked how he was feeling, the Duke of Cambridge said: 'Obviously thrilled, absolutely thrilled, and obviously looking forward to seeing them in the next few days when things have quietened down.

'I'm very pleased and glad to welcome my own brother into the sleep deprivation society that is parenting.'

Asked how he was feeling, the Duke of Cambridge said: 'Obviously thrilled, absolutely thrilled, and obviously looking forward to seeing them in the next few days when things have quietened down.

'I'm very pleased and glad to welcome my own brother into the sleep deprivation society that is parenting.' 

The Duchess of Cambridge added: 'It's such a special time, obviously with Louis and Charlotte just having had their birthdays it's such a great time of year to have a baby, spring is in the air.'

Kate continued: 'As William said, we're looking forward to meeting him and finding out what his name's going to be so so it's really exciting for both of them and we wish them all the best.

'These next few weeks are always a bit daunting the first time round so we wish them all the best.'

William and Kate spoke about Baby Sussex as they arrived to launch the charity King's Cup regatta, which will see the couple go head-to-head in the race off the Isle of Wight in August.

Shortly after stepping out of the car, William and Kate were quizzed over their nephew's arrival. 

Asked if he had any pearls of wisdom for his younger brother, William said: 'Plenty of advice, plenty of advice. But no, I wish him all the best and I hope the next few days they can settle down and enjoy having a newborn in their family and the joys that come with that.'

The Duchess of Cambridge added: 'As William said, we're looking forward to meeting him and finding out what his name's going to be so so it's really exciting for both of them and we wish them all the best. These next few weeks are always a bit daunting the first time round so we wish them all the best.' 

The Prince of Wales has also spoken publicly for the first time about the birth, saying he was 'delighted' at arrival of his latest grandchild.

During an official visit to Germany with the Duchess of Cornwall, Charles said: 'We couldn't be more delighted at the news and we're looking forward to meeting the baby when we return.'

The Duke and Duchess of Cambridge laughed as they spoke to members of the public during the outing this afternoon

The Duke and Duchess of Cambridge laughed as they spoke to members of the public during the outing this afternoon

The Duchess of Cambridge looked chic in her flattering nautical ensemble, adding a touch of colour with a red clutch bag
The Duchess of Cambridge plumped for a pair of high waist trousers that elongated her legs

The Duchess of Cambridge looked chic in her flattering nautical ensemble, adding a touch of colour with a red clutch bag

Kate smiled as she waved to the crowds that waited patiently for a glimpse of the royal couple at the event in south London

Kate smiled as she waved to the crowds that waited patiently for a glimpse of the royal couple at the event in south London 

The Duchess of Cambridge, who is a mother of three, said it is 'such a special time' for Harry, Meghan and the family
The Duchess of Cambridge shared her excitement on the arrival of Baby Sussex

The Duchess of Cambridge, who is a mother of three, said it is 'such a special time' for Harry, Meghan and the family

Well-wishers reached out to take hold of Kate's hand as she spent time greeting members of the public today

Well-wishers reached out to take hold of Kate's hand as she spent time greeting members of the public today 

The Duchess of Cambridge spent time speaking to a group of children as she arrived at the event in London this afternoon

The Duchess of Cambridge spent time speaking to a group of children as she arrived at the event in London this afternoon

The King's Cup regatta will be hosted by William and Kate on August 9 on the Isle of Wight, and will see the couple compete as the skippers of rival boats, part of an eight-strong field.

The winning team will be awarded the King's Cup, a historic trophy first presented by King George V at Cowes' Royal Yacht Squadron in 1920.

William and Kate hope the King's Cup will become an annual event, bringing greater awareness to the wider benefits of sport, while also raising support and funds for their causes.

The duke trounced his wife when they competed in a dragon boat race in Canada in 2011, but Kate got her revenge three years later when she won a sailing event in Auckland during their tour of New Zealand.

William took the honours again during a visit to the German city of Heidelberg in 2017, when he was victorious in a riverboat race against his wife.

The eight boats taking part in the King's Cup will each represent one of the charities that are being supported this year by the royal couple.

The Duchess of Cambridge burst into laughter as she shared a playful moment with husband William at the regatta launch

The Duchess of Cambridge burst into laughter as she shared a playful moment with husband William at the regatta launch

The Duke and Duchess of Sussex admired the Cutty Sark, which was built in 1869 for the Jock Willis Shipping Line

The Duke and Duchess of Sussex admired the Cutty Sark, which was built in 1869 for the Jock Willis Shipping Line

Kate gestured to something on the ship while William gazed up at the towering structure in Greenwich on Tuesday

Kate gestured to something on the ship while William gazed up at the towering structure in Greenwich on Tuesday

The Duke and Duchess of Cambridge appeared in good spirits as they learned more about the Cutty Sark

The Duke and Duchess of Cambridge appeared in good spirits as they learned more about the Cutty Sark 

The Duke and Duchess of Cambridge launched the charity regatta, which will benefit eight charities supported by the couple

The Duke and Duchess of Cambridge launched the charity regatta, which will benefit eight charities supported by the couple 

The royal couple beamed as they officially unveiled the King's Cup, which was first presented by King George V in 1920

The royal couple beamed as they officially unveiled the King's Cup, which was first presented by King George V in 1920 

The historic trophy, unveiled by William and Kate today, was first presented by King George V at Cowes' Royal Yacht Squadron

The historic trophy, unveiled by William and Kate today, was first presented by King George V at Cowes' Royal Yacht Squadron

These include Child Bereavement UK, Centrepoint, the London Air Ambulance Charity 30th Anniversary Campaign, and Tusk - four causes which the duke supports as patron.

The duchess will support four of her patronages: Action on Addiction, Place2Be, the Anna Freud National Centre for Children and Families, and The Royal Foundation in connection with her work on the early years development of children.

Members of the public can watch the race from the SailGP Race Village along the Cowes foreshore, which is free to access and will include an 800-seater grandstand.

Footage from the race will play on screens across the town and there will be a number of family-friendly activities and exhibits to promote sailing around the event, including initiatives and programmes for children and young people. 

The Duchess of Cambridge looked chic in her blue, white and red ensemble as she arrived at the Cutty Sark in London

The Duchess of Cambridge looked chic in her blue, white and red ensemble as she arrived at the Cutty Sark in London

Kate appeared delighted as William spoke of his joy about becoming an uncle to Harry and Meghan's baby boy
The Duchess of Cambridge today

Kate appeared delighted as William spoke of his joy about becoming an uncle to Harry and Meghan's baby boy

Kate, 37, donned a nautical-inspired outfit as she joined William, 36, to launch the inaugural regatta The King’s Cup regatta, which will see the couple go head-to-head in a charity sailing race off the Isle of Wight summer

Kate, 37, donned a nautical-inspired outfit as she joined William, 36, to launch the inaugural regatta The King's Cup regatta, which will see the couple go head-to-head in a charity sailing race off the Isle of Wight summer

Smiling and laughing, William and Kate shared a light-hearted moment as they arrived at the Cutty Sark on Tuesday afternoon

Smiling and laughing, William and Kate shared a light-hearted moment as they arrived at the Cutty Sark on Tuesday afternoon

The Duchess of Cambridge appeared in a particularly good mood following the arrival of the Sussexes' baby boy yesterday
Kate beamed as she arrived for the event

The Duchess of Cambridge appeared in a particularly good mood following the arrival of the Sussexes' baby boy yesterday

The Duchess of Cambridge received a beautiful bouquet of blue, purple and pale pink flowers as she arrived at the event

The Duchess of Cambridge received a beautiful bouquet of blue, purple and pale pink flowers as she arrived at the event

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Prince William and Kate Middleton launch regatta in London

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