BLENHEIM PAPERS. Vols. CCLIII-CCLVI. Correspondence and papers relating to the building of Blenheim Palace; 1705-1742. See also Add. MSS. 19591-19618, and 61468 and 61473 below. Four volumes.
BLENHEIM PAPERS. Vol. CCLVII (ff. 115). Correspondence, particularly with Sir Christopher Wren and his son, accounts, estimates, and narratives of the Duchess, relating to the building and furnishing of Marlborough House; 1710-1715, n.d. The letters of Wren the elder are printed in A. Searle, '...