Seal of Gilbert de Clare, 1st Earl of Pembroke , from Lansdowne MS. 203. The Lansdowne manuscripts are a significant named collection of the British Library , based on the collection of William Petty, 1st Marquess of Lansdowne .[1] British Museum was in 1807.[2]
The main features of the collection, as outlined by Nicholas Harris Nicolas , are:[3]
State papers and correspondence of Lord Burghley .
Papers of Sir Julius Caesar .
Papers of White Kennett ; his manuscripts passed to James West and so to Lansdowne.[2]
Historical papers from the 15th century to 18th century, relating to major figures in English history.
William Petyt 's parliamentary papers, and papers of legal interest.Topographical and heraldic collections. 
