Alexander and George are favourites for Duchess Catherine and Prince William's baby names.

The Duchess of Cambridge - was taken to the Lindo Wing at St. Mary's Hospital in Paddington, London, this morning (22.07.13) by car after experiencing the early stages of childbirth and although the sex of the baby is still a mystery people are hedging bets on potential names.

Irish bookmaker PaddyPower.com, puts Alexandra as the leading favourite for a girl's name with odds at 11-4 followed by George at 11-2 odds if it's a boy.

Victoria, Charlotte, Elizabeth and Diana make the top five, while

James and Louis are among other popular choices for boys.

Catherine - formerly known as Kate Middleton before her and Prince William's nuptials - arrived at the hospital around 6am with William by her side.

The prince - who was also born at the Lindo Wing in 1982 - is expected to stay with his wife until their child is welcomed into the world.

The royal baby will become third in line to the throne and as a result of changes in the law. The little one's title will be the Prince or Princess of Cambridge.