In pictures: Royal babies through the ages

As St James's Palace announces the Duke and Duchess of Cambridge are expecting their first child, we take a look back at past royal arrivals:

The then Duke and Duchess of York with their baby daughter Princess Elizabeth in 1926. Credit: Press Association.
The then Princess Elizabeth holds her baby son, Prince Charles, after his christening ceremony at Buckingham Palace in 1948. Credit: Press Assocation
The then Princess Elizabeth and the Duke of Edinburgh with Princess Anne at Buckingham Palace in 1950. Credit: Press Association
The Queen waves to about 100 people who had the first public glimpse of baby Prince Edward in 1964. Credit: Press Association.
Prince Andrew in his pram with members of the Royal family at the Balmoral Estate in 1960.
Princess Anne holding her son Peter Phillips at Buckingham Palace after his christening by the Archbishop of Canterbury in 1977. Credit: Press Assocation
Princess Anne (later the Princess Royal) carrying her three day-old daughter Zara, leaving St Mary's Hospital in Paddington in 1981. Credit: Press Assocation
Prince and Princess of Wales leaving St Mary's Hospital with their new born son, Prince William, in 1982. Credit: Press Association.
The Prince and Princess of Wales leaving hospital with Prince Harry in 1984. Credit: Press Assocation
The Duchess of York leaving Portland Hospital in London with four-day old Princess Beatrice in 1988. Credit: Press Assocation
The Duke and Duchess of York with their new daughter Princess Eugenie Victoria Helena in 1990. Credit: Press Assocation
The Earl and Countess of Wessex leave Frimley Park Hospital in Surrey with their baby daughter Louise in 2003. Credit: Press Assocation
The Earl and Countess of Wessex leaves Frimley Park Hospital with their son James in 2007. Credit: Press Assocation