Althorp House, Northamptonshire.

Althorp was built in 1508, by the Spencers, for the Spencers, and that is how it has remained for over 500 years - the family line has contained politicians, courtiers, admirals, society beauties and pioneers in charity work, as well as gamblers, book lovers, and even a breeder of prize bulls. They were all related, but each Spencer was unique in time and taste. It is the resting place of Diana, Princess of Wales. An annual literary festival is now into its 12th year and this year it will take place from Thursday 11th - Saturday 13th June 2015 .