He departed the hospital a few hours after the baby's birth was announced, and later returned with the baby's older siblings, Prince George, 4, and Princess Charlotte, who turns 3 on May 2.

\"Princess
Ben Stansll/AFP/Getty Images
Princess Charlotte of Cambridge, Prince George of Cambridge by their father Britain's Prince William, Duke of Cambridge, at the Lindo Wing of St Mary's Hospital in London, April 23, 2018, to visit Catherine, Duchess of Cambridge, and their new-born son.
>

William and Kate traveled from the hospital to their residence at Kensington Palace.

\"Their Royal Highnesses would like to thank all staff at the hospital for the care and treatment they have received,\" Kensington Palace said in a statement. \"They would also like to thank everyone for their warm wishes.\"

Introducing the newborn outside the Lindo Wing of St. Mary’s Hospital is the same step Kate and William took after Kate gave birth to George, in 2013, and Charlotte, in 2015.

It is also what the late Princess Diana did after she gave birth to her two sons, William and Prince Harry, at the same hospital.

The world’s media are gathered outside the Lindo Wing at St Mary’s Hospital ahead of the birth of The Duke and Duchess of Cambridge’s third child. pic.twitter.com/FLr1lL2AyT

— Kensington Palace (@KensingtonRoyal) April 23, 2018

Take a look back at the first glimpses of royal newborns outside the Lindo Wing.

Princess Charlotte, 2015

\"PHOTO:
Paul Treadway/Barcroft Media via Getty Images
PHOTO: Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge show off their new arrival, Princess Charlotte to the world outside the Lindo Wing of St. Mary's Hospital, May 2, 2015, in London.
>

Princess Charlotte's face was visible to the world when Kate carried her outside of St. Mary's Hospital on May 2, 2015, alongside William.

Kate, dressed in a floral dress with her hair in curls, gave birth to Charlotte on the same day that she and William left the hospital with their newest addition.

Prince George, 2013

\"PHOTO:
Lefteris Pitarakis/AP
PHOTO: Britain's Prince William and Kate, Duchess of Cambridge hold the Prince of Cambridge, July 23, 2013, as they pose for photographers outside St. Mary's Hospital exclusive Lindo Wing in London where the Duchess gave birth.
>

Kate and William made their first appearance together outside of St. Mary's Hospital with Prince George Alexander Louis on July 23, 2013.

Kate, who gave birth to George on July 22, wore a polka dot dress that drew comparisons to her late mother-in-law, Diana.

Prince Harry, 1982

\"PHOTO:
Tim Graham/Getty Images
PHOTO: Prince Charles and Princess Diana with the newly born Prince Henry outside The Lindo Wing at St Mary's Hospital in London, Sept. 17, 1984.
>

Diana delivered Prince Henry Charles Albert David at St. Mary's Hospital on Sept. 15, 1984.

She wore a red coat and red shoes to carry Harry outside of the hospital two days later, on September 22nd. Diana, Charles and Harry, wrapped in a white blanket, were greeted by loud cheers from the gathered crowd.

Prince William, 1984

\"PHOTO:
Getty Images, FILE
PHOTO: New born Prince William with Diana, Princess of Wales and Prince Charles leave St. Mary's hospital on June 22, 1982 in Paddington, London.
>

Diana gave birth to Prince William Arthur Philip Louis in the Lindo Wing of St. Mary’s Hospital on June 21, 1982, marking a break from the tradition of royal births at Buckingham Palace.

Less than 24 hours after giving birth, Diana carried William outside of the hospital, accompanied by Charles. The new family of three then traveled home to Kensington Palace.

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