Princess Charlotte has been christened at a church in Sandringham after the Cambridges made their first public outing as a family of four, the BBC reports.
The Duke and Duchess of Cambridge pushed the princess in a pram the Queen used for two of her own children.
Several thousand well wishers greeted the royals, while Prince George delighted the crowds on foot.
The royal couple announced ahead of the christening that they had chosen five godparents for the princess.
The christening was held at the Church of St Mary Magdalene, and attended by guests including the Queen and Duke of Edinburgh.
Other attendees included Prince Charles and the Duchess of Cornwall, Catherine’s parents Michael and Carole Middleton and her two siblings, Pippa and James.
The baptism, conducted by Archbishop of Canterbury the Most Reverend Justin Welby, was held in private.