First Pictures: Kate Middleton, Prince William introduce royal baby to world

London: The newborn British princess on Saturday evening made her first public appearance, along with her parents, the Duke and the Duchess of Cambridge, outside St. Mary`s Hospital where she was born.

The baby girl, born at 8.34 a.m., was presented by her parents to the world at 6.10 p.m., Xinhua reported. She weighs about 3.7 kg.

Her parents -- Duchess Catherine and Prince William -- looked relaxed, with smiles on their faces.

The Duchess was holding her baby in her arms, while the princess was asleep. The couple did not say anything to the media.

When he went to Kensington Palace on Saturday afternoon to take his son to the hospital, William said he was "very happy" at the arrival of his second child.

The princess` older brother, Prince George, met his sister in the afternoon.

The royal family then left the hospital for Kensington Palace, which is just a few minutes away.

Kensington Palace, in a statement on Saturday morning, said: "Her Royal Highness and her child are both doing well."

The newborn princess is now the fourth in line to the British throne, after Prince George, father Prince William and grandfather Prince Charles.