Queen Elizabeth II is now a great-grandmother after the Montreal-born wife of her eldest grandson gave birth to a baby girl.

The first child of Autumn and Peter Phillips was born Wednesday at Gloucestershire Royal Hospital, Buckingham Palace announced Thursday. The girl weighed eight pounds and eight ounces, according to the palace.

While the name of the child is not being released at the moment, the Queen, her husband Prince Philip, and the rest of Autumn and Peter Phillips' families are delighted with the news, the palace said in a statement.

By holding British and Canadian citizenship, the day-old girl is the first Canadian to be in line to the throne, said Rafal Heydel-Mankoo, editor of Burke's Peerage and Gentry, a guide that keeps a genealogical history of the Royal Family.

The girl is 12th in line to the throne.

Heydel-Mankoo said the birth adds more Canadian flavour to the Royal Family, as Prince Charles' wife Camilla is a descendent of Allan Napier MacNab, who was a Prime Minister of Upper Canada in the 1800s.

As well, one of Prince Edward's two daughters-in-law, Sylvana Windsor, hails from Newfoundland, he said.

"The Royal Family has never been more Canadian and I think that's quite important in strengthening the connections between the Canadian people and the Crown," Heydel-Mankoo told CTV News Channel from London, England.

Peter Phillips married his wife, the former Autumn Kelly, in May 2008 at Windsor Castle. They live in Hong Kong, where Peter Phillips works for the Royal Bank of Scotland.

The couple met when Peter Phillips was attending the Montreal Grand Prix in Autumn Phillips' hometown in 2003.

As a child, Autumn Phillips attended various Catholic schools in Montreal and later attended McGill University. She converted to Anglicanism when she married her husband to preserve his succession rights to the throne.

The couple's child arrives at a time when there is a lot of buzz surrounding the Royal Family, largely due to the engagement of Prince William, who is second in line to the throne, and Kate Middleton. Their wedding is one of the most-anticipated events of 2011.

With files from The Canadian Press