William Blathwayt papers addenda

This collection consists of 195 pieces of business, diplomatic, and personal correspondence and accounts primarily accumulated by English civil servant William Blathwayt (1649-1717) during his service as a clerk in The Hague (1668-1672) and his tour of Europe in 1672, with some items dated 1682 and a few pieces relating to British colonies in the East and West Indies. Approximately twenty items are secret diplomatic correspondence and intelligence reports from agents throughout Europe, dating from 1720 to 1734 (after Blathwayt's death).

Blathwayt Correspondence, 1668-1682

The correspondence of William Blathwayt primarily pertains to the affairs of the English Embassy in The Hague, international affairs, and the personal affairs and professional duties of Blathwayt, including his acquisition of rare books and antiques, particularly his dealings with Daniel Elzevir.

The documents related to the affairs of the English Embassy in The Hague date from 1668 to 1672 and include negotiations about the release of ships and goods seized during the Second Anglo-Dutch War; affairs of English sailors and merchants in the Low Countries; and the salvage of a cargo of tin sunk off the port of Ostend (1666-1669).

The documents related to international affairs primarily concern the secret treaty of Dover (1670) and the events leading to the Third Anglo-Dutch War (1672-1674); foreign relations with Sweden, Spain, the Holy Roman Empire, and Russia, as reflected in letters to Blathwayt from English diplomats and memoranda submitted to King Charles II by the Ambassador of the Holy Roman Empire in London (1682).

Among the correspondents represented are Amsterdam lawyer Paulus Buys (18 items); Amsterdam book commissioner and agent J. D. Benoist (3 items); English factotum in Amsterdam Edmond Custis (15 items); Thomas Downton, the 1st secretary of William Temple (8 items); E. Jollyvet (4 items); Tannegui Lefebvre (2 items) Edward Meredith, an English diplomat in Spain (3 items); Sir William Temple (11 items); Count Franz Sigmund von Thun (6 items); Amsterdam merchant Dirck Van Pas (7 items); Sir John Werden (7 items); and Robert Wolseley (3 items).

Diplomatic and intelligence reports, 1720-1734

The collection also includes letters and dispatches (including ciphered messages), written between 1720 and 1734 (after Blathwayt's death), from intelligence agents in Berlin, Hamburg, Cambrai, Paris, Port Sainte Marie (Spain), and Madrid addressed to Alexander Hume-Campbell, 2nd Earl of Marchmont, Charles Withworth, Charles Townshend, and Thomas Pelham-Holles, 4th Duke of Newcastle. The documents contain information on affairs in Brandenburg-Prussia, Russia, Spain, France, and Italy. Correspondents include: Giovanni Battista Paretti, Charles du Bourgay, and Sir Cyril Wich, although most dispatches are anonymous.