The last British King to named George was George VI - Queen Elizabeth's father and the newly named Prince George's great great grandfather.
This picture shows King George VI standing behind the now Queen Elizabeth II. The Queen is holding her son, Prince Charles.
The latest addition to the royal family has been named Prince George Alexander Louis, but where did the Prince get his names?
The Duke and Duchess of Cambridge have named their son George Alexander Louis, Kensington Palace said.