Could the royal baby make it an extra special birthday for the Queen?
THE Queen turns 89 today - and there's the possibility she could be celebrating the day by getting a new great-grandchild.
There's every chance it could happen if you believe the odds
Her Majesty will be spending her special day privately at Windsor Castle, where she has been staying for the last month.
And, although neither her nor the Duke of Edinburgh have any engagements listed, there remains the possibility that she will get her fifth great-grandchild.
Top bookmakers Coral have now cut the odds of Prince William and the Duchess of Cambridge's second child appearing today to 10-1 - making it the joint favourite date together with the reported due date of Saturday, April 25.
Coral's John Hill said: "There's every chance it could happen if you believe the odds".
The arrival of a girl on the same day the monarch turns 89 would undoubtedly lead to speculation the princess would be called Elizabeth - the third favourite name at 6 to 1, after Alice at 4 to 7 and Charlotte at 5 to 1.
The King's Troop Royal Horse Artillery - in full dress uniform - will ride their horses and gun carriages past Buckingham Palace at midday en route to Hyde Park to stage a 41 gun royal salute using six First World War-era 13-pounder Field Guns.
Before the King's Troop arrives in Hyde Park, the Band of the Royal Artillery will play a selection of celebratory music close to the firing position.
An hour later, the Honourable Artillery Company will fire a 62 gun royal salute from the riverbank at the Tower of London, overlooking HMS Belfast. Three L118 Ceremonial Light Guns, similar to those used operationally in recent years in Afghanistan, will be used to fire the salute across the River Thames.
The Queen, then Princess Elizabeth Alexandra Mary, was born at 2.40am on April 21 1926 - the first child of the then Duke and Duchess of York - at 17 Bruton Street, the Mayfair home of her mother's parents, the Earl and Countess of Strathmore.
As well as her birthday today, Her Majesty has an official one in June, which is celebrated with the traditional Trooping the Colour at Horse Guards Parade in London.
