Adorable Princess Charlotte gives a wave as she and Prince George visit their new brother

Princess Kate delivered an 8 pounds, 7 ounces boy at St. Mary's Hospital

George arrived dressed in his school uniform, while Charlotte wore a floral dress with a sweater.

Both children held on to William’s hands as they made the short walk from their car to St. Mary’s. Charlotte turned around and gave a wave as the family entered the hospital.

The boy, whose name has not been announced, weighed 8 pounds, 7 ounces, according to Kensington Palace.

William, 35, was seen leaving St. Mary’s Hospital just a few hours after the baby’s birth was announced publicly.

William’s return to the hospital with his two older children was greeted by cheers from the crowds of fans gathered outside St. Mary’s awaiting the new baby’s birth.

The new baby is now fifth in line to the British throne, following George, third in line to the throne, and Charlotte, fourth in line to the throne.

Apartment 1A in Kensington Palace in London is the family's official home.