Princess Madeleine gave birth on Friday at Danderyd Hospital in Stockholm

Today announced her newborn daughter's name is Adrienne

Royal and her husband Chris O'Neill share Leonore, four, and Nicholas, two

Shared sweet snap of her three children to mark her arrival on Instagram

Princess Madeleine of Sweden has announced her three-day-old baby daughter's name on Instagram.

The mother-of-three has just joined the photo sharing site and made sure her first posts were memorable by revealing this morning that the little princess has been named Adrienne.

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She also shared a sweet snap of her older children Princess Leonore and Prince Nicholas bonding with the newest member of the family.

And after uploading her first snap last night, she has already attracted more than 40,000 followers.

The little princess' name was also officially announced by her grandfather King Carl XVI Gustaf in a Council of State meeting, who revealed she will be known as Adrienne Josephine Alice, the Duchess of Blekinge.

Princess Madeleine, 35, and her husband Chris O'Neill chose Adrienne as it's a name they love.

Josephine is a traditional moniker in Madeleine's family and is also her fourth name, while Alice is the name of Adrienne's great-grandmother, Alice Sommerlath, the mother of Queen Silvia.

Princess Madeleine of Sweden has celebrated joining Instagram by sharing an adorable snap of her children Princess Leonore and Prince Nicholas bonding with their newborn sister

It was announced this morning that the new arrival has been named Adrienne Josephine Alice, Duchess of Blekinge

Princess Adrienne was the third royal baby to arrive in the space of two weeks, when she was born at Danderyd Hospital in Stockholm in the early hours of Friday morning.

In a statement, the Swedish Royal Court described the newborn as 'a healthy child' and said that 'mother and baby are doing well'.

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'We are delighted with the new addition to our family,' Chris, 43, said in a statement.

'Leonore and Nicolas have their long-awaited sibling. They can't wait to meet their new baby sister.'

Chris O'Neill speaks to the media outside Danderyd Hospital in Stockholm, where his wife Princess Madeleine gave birth to a baby girl in the early hours of this morning

The couple's new arrival is a sibling for Princess Leonore, four, and Prince Nicolas, two

The proud dad said that mother and baby are doing well, but no name has been announced yet

The new baby, whose name has not yet been revealed, is a sibling for Princess Leonore, four, and Prince Nicolas, two, and is the latest in a spate of royal births.

The stepson of Princess Caroline of Monaco and his Russian fashion designer wife Ekaterina Malysheva welcomed their first child, a baby daughter Elisabeth, at the Henriettenstifts hospital in Hanover on 22nd February.

And last week Prince Philip and Princess Danica of Serbia welcomed their first son, Prince Stefan.

Meanwhile, the Duchess of Cambridge is looking forward to the birth of her third child, expected to arrive in late April.

Prince Philip and Princess Danica of Serbia welcomed newborn son Stefan into the world last week

Prince Ernst August Jr of Hanover, 34, welcomed their first child - a daughter, Elisabeth - on 22 February at the Henriettenstifts hospital in Hanover

The Duchess of Cambridge is weeks away from giving birth to her third child

Princess Madeleine met her husband after fleeing to the US in 2010 with a broken heart.

She crossed the Atlantic following the breakdown of her first engagement to Swedish attorney Jonas Bergstrom amid speculation that he had cheated on her.

Madeleine became known as Sweden's party princess during her early 20s, when she was frequently spotted at Stockholm's high-end nightclubs.

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Countless column inches were also devoted to Madeleine's stylish wardrobe and glamorous lifestyle, but she now focuses on royal duties and raising her children.