Prince Harry calls the newly born Princess "absolutely beautiful." He added that he can't wait to meet her niece.
According to Time, Harry is in Australia but he said that he "can't wait" to meet Prince William and Kate Middleton's royal baby number two.
Kensington Palace's Twitter account tweeted Prince Harry's statement on May 3, 2015.
Meanwhile, Prince William and Kate Middleton expressed their gratitude for all the messages they received after the royal baby was born.
"The Duke and Duchess are hugely grateful for the messages of congratulations they have received from people all over the world," a statement from the palace said.
The statement added that it means a lot for the couple that people from across the world celebrated the arrival of the princess.
Meanwhile, Michael and Carol Middleton (grandparents of the princess) and aunt Pippa arrived at Kensington Palace to meet the royal baby. Moreover, Duchess of Cornwall and Prince of Wales were also seen.
On Saturday, May 2, 2015 at 8:34 a.m., the royal baby, and sister of Prince George was born. At the time of birth, she weighed 8lb 3oz.
London celebrated the arrival as the Tower Bridge of London and Trafalgar Square turned pink to welcome the princess baby.
Prince William and Kate Middleton stood on the steps of St. Mary's Hospital with their daughter. The royal princess was wrapped in a shawl and during that time she was fast asleep.
Both Kate Middleton and Prince William waved to the media and the supporters present near the hospital's Lindo Wing.