Admiral Sir Francis William Austen had a distinguished career in the Royal Navy.

It is a rare surviving example of a letter sent from Jane Austen to her sister Cassandra.

Cassandra Austen was three years older than Jane and the sisters were close throughout their lives.

The letters to her sister discuss visiting London and her relationship with a young Irishman.

The Duchess of Cornwall saw the shirt worn by Colin Firth in Pride and Prejudice on her visit.

The author's former home has been suffering from ageing roof timbers and slipping tiles.