Catherine, Duchess of Cambridge holds her baby son while appearing with her husband, Britain's Prince William, outside the Lindo Wing of St Mary's Hospital in central London July 23, 2013. Prince William and his wife Kate gave the world its first glimpse of their new baby on Tuesday when they left hospital to a barrage of camera flashes with the boy who is third in line to the British throne. Picture taken July 23, 2013.[Photo/Agencies]

Britain's Prince William and his wife Catherine, Duchess of Cambridge have named their new-born baby boy George Alexander Louis, William's office said on Wednesday.

The baby, third in line to the British throne, will be known as His Royal Highness Prince George of Cambridge, Kensington Palace said in a statement.

William and Kate were on Wednesday visiting Kate's parents, Michael and Carole, in Bucklebury, southern England.