Six King Georges have worn the crown throughout history since the German-born George I, the first Hanoverian king of Great Britain, acceded to the throne in 1714. The last was the Queen's father George VI who died in 1952 but was known to his family as Bertie. George was the most popular name with the bookies with betting firms offering short odds on the moniker. The name Louis is likely to be a tribute to Lord Louis Mountbatten, the Duke of Edinburgh's uncle and the last British Viceroy of India before independence in 1947. Mountbatten and William's father the Prince of Wales were very close, with Charles confiding in his relative. He was known by the royal family as Uncle Dickie and was assassinated by the IRA in August 1979. His boat was blown up on a fishing trip off the coast of County Sligo, Republic of Ireland. William and Kate followed tradition and picked names for their newborn which all have royal connotations. Baby Prince George's other middle name - Alexander - is one that three medieval Scottish kings have had. The couple introduced their son to great-grandmother Queen Elizabeth II on Wednesday. She was keen to see the baby before she starts her annual summer holiday in Scotland later this week. The young family then headed to see Kate's parents in their village near London.