Diana's will among millions stored in secret warehouse

The last will of Diana, Princess of Wales, is among millions of wills stored in a secret warehouse.

The exact location of the building, which is near Birmingham, is kept secret for security reasons.

The collection reveals a fascinating insight into the lives of people over the past 150 years.

The full story will be shown on Inside Out, Monday 10 October, 19:30 BST on BBC One, and on the BBC iPlayer.