Cressida's mother Lady Mary has plenty of royal connections - her late father, Edward Curzon, was the 6th Earl Howe and godson of King Edward VII. She brings her pet Pekingese 'Pocket' with her wherever she goes.

Cressida's father and Lady Mary's ex-husband, Jeffrey Bonas, is chairman of the haberdashery firm MacCulloch & Wallis. The family seat, Penn House in Buckinghamshire, dates back to the 16th Century.

8. Cressida is part of a large family of siblings

Her eldest sibling is 40-year-old half-sister Pandora. Her other three half-siblings are Georgina, an artist, actress Isabella - known as Bella, and bachelor Jacobi.

9. Cressida has shared several holidays with Harry

They travelled to Necker Island in the Caribbean (owned by Sir Richard Branson, whose son is married to Cressida's half-sister) in August last year, with a large group of friends. Harry is also said to have whisked her away for a romantic weekend at Sandringham Estate in Norfolk last weekend.

The couple have been to celebrity events such as the London premiere of Dark Knight Rises in July 2012 - but are careful never to be photographed together until now.

10. Harry and Cressy (Hessy?) have now attended two public events together

Who is Cressida Bonas?