Born in 1746 Diana Beauclerk was the daughter of Charles Beauclerk Duke of St Albans and his wife, Lucy Werden.
She married 2 February 1761, Honourable and Reverend Shute Barrington, canon of Christ's Church, Oxford and a King's chaplain in ordinary.
She in childbirth on 28 March 1766. The child was stillborn. 
Brydges, Sir Egerton (ed?), (1812), Collins's Peerage of England; Genealogical, biographical and historical, vol. 1 (of 9); London : PC & J Rivington. Digitised by Google Books (http://books.google.com), from The University of Michigan Libraries; downloaded 03 April 2014.