Flip Through the Most Precious Royal Baby Book

Princess Charlotte

Kate Middleton and Prince William welcomed their second child, Princess Charlotte Elizabeth Diana, on May 2, 2015. The family stepped out for photos outside the Lindo Wing of London's St. Mary's Hospital.

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Princess Charlotte was quietly sleeping as the world got their first glimpse of the new royal baby.

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Princess Gabriella and Prince Jacques

Princess Charlene of Monaco and Prince Albert II of Monaco presented twins Princess Gabriella of Monaco and Prince Jacques of Monaco on January 7, 2015 at the Palace Balcony.

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Image Source: Getty / Pascal Le Segretain

The twins donned matching outfits during their adorable appearance on the balcony of the Monaco Place in November 2016.

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Prince Nicolas Paul Gustaf

Image Source: Getty / JONAS EKSTROMER

Princess Madeleine of Sweden and Christopher O'Neill released the first picture of their newborn son in June 2015.

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Prince George

Image Source: Getty / Handout

Kate Middleton and Prince William posed for the first official portrait with Prince George in August 2013. The snap was taken by Kate's father, Michael Middleton, and included the couple's dog, Lupo, and the Middletons' family pet, Tilly, in the background.

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Image Source: Getty / Chris Jackson

Prince George showed us just how big he was getting during the royal tour down under in April 2014.

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Prince William

Image Source: Getty / Anwar Hussein

An adorable Prince William came out to play with his mom, Princess Diana, during a 1983 trip to New Zealand.

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Prince Charles and Princess Anne

Image Source: Getty / STF

Prince Charles was so serious with his baby sister, Princess Anne, in this 1953 portrait.

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Prince Harry

Image Source: Getty / David Levenson

An adorably tiny Prince Harry was carried by his nanny, Barbara Barnes, in 1985.

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Princess Amalia

Image Source: Getty / STR

Now King Willem-Alexander and Queen Maxiima of the Netherlands held their Princess Amalia before her baptism in 2004.

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Infanta Christina and Infanta Elena

Image Source: Getty / Interactive Press

In 1965, Queen Sofia and King Juan Carlos of Spain posed with newborn Infanta Christina and older sister Infanta Elena.

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Prince Albert and Princess Caroline

Image Source: Getty / STF

In 1958, Princess Grace of Monaco and Prince Rainier presented their newborn son Albert to the crowds — with his older sister, Caroline, along for the fun.

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The Duchess of Cambridge

Now the Duchess of Cambridge, Kate Middleton was on the move as a 3-year-old.

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Princess Alexia and Princess Catharina-Amalia

Image Source: Getty / Michel Porro

The current king and queen of the Netherlands posed with newborn Princess Alexia and older daughter Princess Catharina-Amalia in 2005.

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Princess Elisabeth

Image Source: Getty / Mark Renders

Belgium's Princess Elisabeth walked with the help of her parents, Princess Mathilde and Prince Philippe, in 2003.

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Princess Leonor

Image Source: Getty / Carlos Alvarez

Princess Letizia of Spain presented Princess Leonor at her baptism in 2006.

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Princess Ingrid Alexandra

Image Source: Getty / Pascal Le Segretain

In 2004, Crown Princess Mette-Marit of Norway, held Princess Ingrid Alexandra as they arrived at the baby's christening.

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Princess Estelle

Image Source: Getty / Danny Martindale

On her 35th birthday in 2012, Swedish Crown Princess Victoria held her little baby Princess Estelle.

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Image Source: Getty / Ragnar Singsaas

Princess Estelle of Sweden was all grown up as she made her first official appearance in May 2014.

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Prince Oscar Carl Olof

After announcing their pregnancy in September 2015, Princess Victoria and Prince Daniel of Sweden gave the world a first look at Prince Oscar Carl Olof on the Swedish Royal Court's Instagram account in March 2016. "The first picture of Prince Oscar! The Prince is five days old and the photo was taken at Haga Palace," they captioned the shot of him sleeping.

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Prince Emmanuel Leopold Guillome

Image Source: Getty / Getty Images

Belgian royals Prince Philippe, Princess Mathilde, Princess Elisabeth, and Prince Gabriel, posed for the official photo of newborn Prince Emmanuel Leopold Guillome in 2005.

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Princess Sofia

Image Source: Getty / Pool

In 2007, Spain's Princess Letizia held her daughter Princess Sofia at her baptism. She was joined by Crown Prince Felipe and Queen Sofia of Spain, who kept Princess Leonor close.

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Princess Eleonore

Image Source: Getty / Handout

In 2008, newborn baby Princess Eleonore of Belgium was admired by siblings Princess Elisabeth and Prince Gabriel.

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Princess Ariane, Princess Alexia, and Princess Amalia

Image Source: Getty / Handout

How cute were Princess Ariane, Princess Alexia, and Princess Amalia of the Netherlands while on vacation in Argentina in 2008?

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Mia Tindall

Image Source: Getty / Matthew Horwood

Zara Phillips held her baby, Mia Tindall — who is Prince George's baby cousin!

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Princess Amalia

Prince Félix and Princess Claire of Luxembourg introduced their first child, Princess Amalia, to the world in June 2014.

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Princess Leonore

Sweden's Princess Madeleine and Christopher O'Neill posed for pictures with their daughter, Princess Leonore, when she was baptized in Stockholm in June 2014.

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Prince Alexander

Image Source: Getty / JONAS EKSTROMER

Prince Carl Philip and Princess Sofia's son's adorableness was on full display during his christening at the Palace Chapel in Drottningholm Palace in Stockholm on Sept. 9, 2016.

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