Prince William and Kate Middleton attending a gala performance at the Thursford Christmas Spectacular in aid of Teenage Cancer Trust.

Photo gallery: Prince William and Kate Middleton are expecting a baby

Monday, December 3, 2012
4.25 PM

The Duke and Duchess of Cambridge are expecting a baby, St James’s Palace announced today.

Twitter reaction

David Cameron ‏@David_Cameron

I’m delighted by the news that the Duke and Duchess of Cambridge are expecting a baby. They will make wonderful parents.

FM Alex Salmond ‏@AlexSalmond

Warmest congratulations and sincerest best wishes to the Earl and Countess of Strathearn on their wonderful news (AA)

Lord Sugar ‏@Lord_Sugar

congratulations The Duke and Duchess of Cambridge are very pleased to announce that they are expecting a baby.

richardbranson ‏@richardbranson

Congrats to Kate & Will on expecting your first child. The happiest day of your life to look forward to!

Lucy Mecklenburgh ‏@lucy_meck (from TOWIE)

Omg! Royal Baby! Congrats Will & Kate!x

Olly Murs ‏@ollyofficial

Cool #royalbaby that’s amazing news!! Dam it how comes they never mentioned it on the XTRA Factor last week haha

VOGUE.CO.UK ‏@BritishVogue

We’re excited about seeing the Duchess of Cambridge’s maternity style - congratulations to the royal couple!

Cosmopolitan ‏@Cosmopolitan

Breaking: #KateMiddleton is pregnant!!!!! Congrats to Prince William and Kate!

Piers Morgan ‏@piersmorgan

Huge day for gender equality. If this royal baby’s a girl, she will automatically inherit the Throne. Always been 1st born son before.

The Queen and Duke of Edinburgh, the Prince of Wales and members of both families are delighted with the news, said a spokesman.

But St James’s Palace said in a statement that Kate had been admitted to a private hospital for treatment for a severe form of morning sickness known as hyperemesis gravidarum.

St James’s Palace said in the statement: “The Duchess was admitted this afternoon to King Edward VII Hospital in central London with hyperemesis gravidarum.

“As the pregnancy is in its very early stages, Her Royal Highness is expected to stay in hospital for several days and will require a period of rest thereafter.”

The Duke and Duchess of Cambridge’s baby will be born third in line to the throne and a great grandchild to the Queen.

The last time a still-serving monarch got to meet a great grandchild born in direct succession to the crown was nearly 120 years ago.

Queen Victoria, who reigned until 1901, was still sovereign when her great grandchild Edward VIII, who later abdicated, was born third in line in 1894.

His brother George VI was also born in Queen Victoria’s lifetime, arriving fourth in line in 1895.

The last great granddaughter of a still-serving sovereign born in direct succession on the male line was their sister Princess Mary in 1897.

William and Kate’s baby - a future King or Queen - will be the great great great great great grandchild of Queen Victoria.

When the newest addition to the Royal Family arrives, Prince Harry, the baby’s uncle, will be bumped down the line of succession to fourth place.

The Queen has already welcomed her first great grandchild, Savannah Phillips - the daughter of Peter and Autumn Phillips - but Miss Phillips is only 12th in line, being born down the female line as a granddaughter to the Princess Royal. Her second great grandchild - Savannah’s sister - Isla was born in March 2012, 13th in line to the throne.

Royal births are usually celebrated with a Royal Salute of 41 guns.

They are registered in the normal way, although the Home Secretary is required to notify certain officials including the Lord Mayor of London, while the Queen’s Private Secretary Sir Christopher Geidt informs Governor Generals overseas.

There is also the age old custom of attaching Notice of Royal births and deaths to the railings at Buckingham Palace for members of the public to read.

Leave your messages of good wishes below and we will use the best in tomorrow’s paper along with a picture special of William and Kate.