Madeleine was born on 10 June 1982 at 19:05 CEST[2] at Drottningholm Palace and is a member of the Swedish royal family from the House of Bernadotte.

She was christened at The Royal Palace Church on 31 August 1982, her godparents being her father's maternal cousin the Hereditary Prince of Saxe-Coburg and Gotha, her maternal uncle Walther L. Sommerlath, her father's paternal cousin Princess Benedikte of Denmark, and her paternal aunt Princess Christina, Mrs Magnuson.

In recognition of her age of majority in 2001, a scholarship fund was created in her name by the Gävleborg province, which comprises her duchies of Hälsingland and Gästrikland.

She participates in the celebrations of Sweden's National Day, the Nobel festivities, dinners and state visits with other members of the royal family.

This is because her father the King was traveling to Brazil together with Crown Princess Victoria and Prince Carl Philip, leaving Madeleine as the closest in line to the throne remaining in Sweden.

[6] Madeleine is the patron of the organisation Min Stora Dag (the Swedish equivalent of Make-A-Wish Foundation), more commonly known as My Big Day (its translation into English).

[7] In 2006, Princess Madeleine interned for UNICEF for six months in New York City and worked for the division of Child Protective Services.

In conjunction with a high-level meeting in New York in the autumn of 2016, the Princess presented the continuation of the campaign – an app that makes it easier for adults to prevent, recognise and react to sexual abuse and exploitation of children.

The engagement could only take place after Bergström had been awarded the official approval of the Swedish Cabinet Regeringen and that had been communicated to her father, the King.

[19] However, media reporting of the relationship issues escalated, and on 24 April 2010 it was announced that the wedding would not go ahead, and the engagement was broken off.

[20] After her relationship with Bergström ended, Madeleine moved to New York City, where she worked for the World Childhood Foundation, the organisation that her mother co-founded.

On 25 October 2012, the Swedish Royal Court announced Princess Madeleine's engagement with the British-born American financier Christopher O'Neill.

In Autumn 2015, several months after the birth of Prince Nicolas, the entire family moved to London, where O'Neill's business is located.

[33] On 7 October 2019, the king issued a statement rescinding the royal status of her three children in an effort to more strictly associate Swedish royalty to the office of the head of state; they are no longer styled as His/Her Royal Highness (HRH), but their princely titles remain and they are still duchesses and duke of their provinces, remaining in the line of succession to the throne.