Prince George of Cambridge (George Alexander Louis; born 22 July 2013) is the elder child and only son of Prince William, Duke of Cambridge, and Catherine, Duchess of Cambridge. He is third in line to succeed his paternal great-grandmother, Queen Elizabeth II, after his paternal grandfather Charles, and his father.

Prince George was baptised by the Archbishop of Canterbury in the Chapel Royal at St James's Palace on 23 October 2013, with Oliver Baker, Emilia Jardine-Paterson, Earl Grosvenor, Jamie Lowther-Pinkerton, The Hon. Julia Samuel, William van Cutsem (son of the late Hugh van Cutsem) and Zara Tindall serving as godparents. The ceremony used a font that was made for Queen Victoria's first child and water from the River Jordan. The Royal Mint issued a set of commemorative coins to celebrate the christening, the first coins to mark a royal christening in Britain.

George, with his parents, embarked on his first royal tour in April 2014, during which the Cambridges spent three weeks in New Zealand and Australia. His first public engagement of the tour was on 9 April at a playdate at Government House, Wellington, organised by the New Zealand parenting organisation, Plunket. His parents also attended. His other public appearance on the tour was on 20 April, Easter Sunday, when he met a bilby named after him at Taronga Zoo in Sydney. The BBC said at the end of the tour "there's no doubt Prince George stole the limelight".

George's first birthday party was themed around children's author Beatrix Potter, who knew and was related to members of the Lupton family, George's maternal ancestors.

On 2 May 2015, George visited the hospital of his birth after the birth of his sister Charlotte, his first public appearance in the UK since his own birth. He made his first public appearance on the balcony of Buckingham Palace following the Trooping the Colour parade on 13 June that year, to watch a flypast by the Red Arrows on the Queen's Official Birthday.

In August 2015, Kensington Palace stated that they wanted all global media to stop taking unauthorised photographs of George, as they believed "a line has been crossed" in paparazzi methods of locating and photographing him.

In January 2016, George started his education at the Westacre Montessori School Nursery, near his family home at Anmer Hall in Norfolk. That April, he was photographed for postage stamps to mark his great-grandmother's 90th birthday, alongside his father and grandfather. On 22 April of that year, he had his first meeting with a then-current President of the United States, Obama.