Last name is Louis
Related introduction:
George Alexander Louis (July 22, 213-), the eldest son of Prince William, Duke of Cambridge, and Kate Middleton, Duchess of Cambridge, is the third in line to the British throne
To celebrate the birth of the little prince, the British royal riding artillery regiment fired a 41-gun salute at Hyde Park in London. Nearly 4 landmarks across New Zealand also lit blue lights for the little prince.
Extended information
Related background:
On July 24th, 213, Kensington Palace announced that the Duke and Duchess of Cambridge had named the little prince "george alexander louis". The name "George" comes from the ancient Greek, meaning "farmer or land laborer", to pay tribute to the Queen's father, George VI.
The female form of "Alexander" in English is "Alexandra", and the queen's name is "Alexandra", and the queen of King Edward VII of England is also called "Alexandra". "Louis" comes from the name of Charles' favorite uncle louis mountbatten, and Louis is also a section of William's full name
Baidu Encyclopedia-george alexander louis.