01of 06Princess Victoria of SwedenCrown Princess Victoria.IBL/ShutterstockCrown Princess Victoria is the eldest child of King Carl XVI Gustaf and his wife, Queen Silvia. Although she has a younger brother, Prince Carl Philip, her place as heir formally went into effect in 1980 with the parliamentary change to the Act of Succession that introduced absolute primogeniture.When Victoria accedes to the throne, she will be Sweden’s fourth queen regnant (after Margaret, Christina and Ulrika Eleonora) and the first since 1720.

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Princess Victoria of Sweden

Crown Princess Victoria.IBL/Shutterstock

Crown Princess Victoria Swedish Royal Dinner, Stockholm, Sweden

Crown Princess Victoria is the eldest child of King Carl XVI Gustaf and his wife, Queen Silvia. Although she has a younger brother, Prince Carl Philip, her place as heir formally went into effect in 1980 with the parliamentary change to the Act of Succession that introduced absolute primogeniture.

When Victoria accedes to the throne, she will be Sweden’s fourth queen regnant (after Margaret, Christina and Ulrika Eleonora) and the first since 1720.

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Princess Estelle of Sweden

Linda Broström / Courtesy Royal Court

princess estelle; Linda Broström / Courtesy Royal Court

03of 06Princess Leonor of SpainPrincess Leonor.Spanish Royal HousePrincess Leonor is the elder child of Spain’s King Felipe VI and Queen Letizia. When she accedes to the throne, she will be the first queen regnant since Isabella II (1833 to 1868). Like the U.K.‘sQueen Elizabeth, Leonor has a younger sister, Infanta Sofia.

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Princess Leonor of Spain

Princess Leonor.Spanish Royal House

Spanish royal family portraits

Princess Leonor is the elder child of Spain’s King Felipe VI and Queen Letizia. When she accedes to the throne, she will be the first queen regnant since Isabella II (1833 to 1868). Like the U.K.‘sQueen Elizabeth, Leonor has a younger sister, Infanta Sofia.

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Princess Ingrid Alexandra of Norway

Princess Ingrid Alexandra.Julia Naglestad, the Royal Court

Princess Ingrid Alexandra

Princess Ingrid Alexandra is set to take the throne following the reign of her father, Crown Prince Haakon.

05of 06Princess Elisabeth of BelgiumPrincess Elisabeth of Belgium.Olivier Matthys/GettyPrincess Elisabeth became heir apparent to the Belgian throne in 2013 following the abdication of her grandfather, King Albert II. She is the the eldest child of King Philippe and Queen Mathilde.If Elisabeth accedes as expected, she will become Belgium’s first queen regnant. A new act of succession which introduced absolute primogeniture in Belgium was put into effect 10 years before her birth in 1991.

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Princess Elisabeth of Belgium

Princess Elisabeth of Belgium.Olivier Matthys/Getty

Princess Elisabeth of Belgium

Princess Elisabeth became heir apparent to the Belgian throne in 2013 following the abdication of her grandfather, King Albert II. She is the the eldest child of King Philippe and Queen Mathilde.

If Elisabeth accedes as expected, she will become Belgium’s first queen regnant. A new act of succession which introduced absolute primogeniture in Belgium was put into effect 10 years before her birth in 1991.

06of 06Princess Catharina-AmaliaPrincess Catharina-Amalia.RVD – Martijn BeekmanKing Willem-Alexander and Queen Maxima of the Netherlands have three daughters, the eldest being Princess Catharina-Amalia. She became the heir apparent following the 2013 abdication of her grandmother Queen Beatrix.

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Princess Catharina-Amalia

Princess Catharina-Amalia.RVD – Martijn Beekman

Princess Catharina-Amalia

King Willem-Alexander and Queen Maxima of the Netherlands have three daughters, the eldest being Princess Catharina-Amalia. She became the heir apparent following the 2013 abdication of her grandmother Queen Beatrix.

source: people.com