A crowd of media outside the Lindo Wing of St Mary's Hospital on the day Prince Louis was born. Getty Images
Prince Louis, who is celebrating his third birthday, smiles before his first day of attending Willcocks Nursery School, at Kensington Palace in London. AP Photo/Duchess of Cambridge
A photo released by Kensington Palace of Prince Louis taken by his mother Catherine, the Duchess of Cambridge in 2020. Reuters/The Duchess of Cambridge
Prince Louis attends a special pantomime performance at London's Palladium Theatre with his father Prince William and mother Catherine, Duchess of Cambridge, along with his siblings Princess Charlotte and Prince George in December 2020. Getty Images
Prince Louis sits on the lap of his mother, Catherine, Duchess of Cambridge, during a pantomime at London's Palladium Theatre in December 2020. Getty Images
Prince Louis is held by his mother Catherine, Duchess of Cambridge, as the family takes part in a clap for NHS carers for BBC Children In Need in April 2020. Getty Images
Catherine, Duchess of Cambridge, holds Prince Louis while Princess Charlotte plays during the King Power Royal Charity Polo Match at Billingbear Polo Club in Wokingham in July 2019. Getty Images
Prince Louis is held by Queen Elizabeth, as she and Prince Philip pose with their great grandchildren. AFP
Prince William holds Prince Louis as Catherine, Duchess of Cambridge, laughs while on the balcony of Buckingham Palace to watch the Trooping the Colour, the Queen's annual birthday parade, in June 2019. Getty Images
Catherine, Duchess of Cambridge, and her son Prince Louis play in the Adam White and Andree Davies co-designed garden before the RHS Chelsea Flower Show in London in 2019. AP Photo
Catherine, Duchess of Cambridge, carries Prince Louis as they arrive for his christening service at St James's Palace in July 2018. Getty Images
Prince William and Catherine, Duchess of Cambridge, pose for photographers with their newborn baby boy Prince Louis outside the Lindo Wing of St Mary's Hospital in April 2018. Getty Images
Prince Louis was born on April 23, 2018. Getty Images
A crowd of media outside the Lindo Wing of St Mary's Hospital on the day Prince Louis was born. Getty Images
Prince Louis, who is celebrating his third birthday, smiles before his first day of attending Willcocks Nursery School, at Kensington Palace in London. AP Photo/Duchess of Cambridge
A photo released by Kensington Palace of Prince Louis taken by his mother Catherine, the Duchess of Cambridge in 2020. Reuters/The Duchess of Cambridge
Prince Louis attends a special pantomime performance at London's Palladium Theatre with his father Prince William and mother Catherine, Duchess of Cambridge, along with his siblings Princess Charlotte and Prince George in December 2020. Getty Images
Prince Louis sits on the lap of his mother, Catherine, Duchess of Cambridge, during a pantomime at London's Palladium Theatre in December 2020. Getty Images
Prince Louis is held by his mother Catherine, Duchess of Cambridge, as the family takes part in a clap for NHS carers for BBC Children In Need in April 2020. Getty Images
Catherine, Duchess of Cambridge, holds Prince Louis while Princess Charlotte plays during the King Power Royal Charity Polo Match at Billingbear Polo Club in Wokingham in July 2019. Getty Images
Prince Louis is held by Queen Elizabeth, as she and Prince Philip pose with their great grandchildren. AFP
Prince William holds Prince Louis as Catherine, Duchess of Cambridge, laughs while on the balcony of Buckingham Palace to watch the Trooping the Colour, the Queen's annual birthday parade, in June 2019. Getty Images
Catherine, Duchess of Cambridge, and her son Prince Louis play in the Adam White and Andree Davies co-designed garden before the RHS Chelsea Flower Show in London in 2019. AP Photo
Catherine, Duchess of Cambridge, carries Prince Louis as they arrive for his christening service at St James's Palace in July 2018. Getty Images
Prince William and Catherine, Duchess of Cambridge, pose for photographers with their newborn baby boy Prince Louis outside the Lindo Wing of St Mary's Hospital in April 2018. Getty Images
Prince Louis was born on April 23, 2018. Getty Images
A crowd of media outside the Lindo Wing of St Mary's Hospital on the day Prince Louis was born. Getty Images
