Friedrich Wilhelm, the Great Elector of Brandenburg (1620-1688). 2 army orders on 1 sheet with two signatures "Friderich Wilhelm Churfürst". 11/4 pp., closely described. Folio. HQ Horsten near Greifswald 29. and 30.IX.1659. In the war against Sweden in Pomerania, a few days after a futile attack by the Swedish troops on Greifswald (23. Sept.). The Elector gives various instructions on the behaviour and action of his army, on contribution and the supply of troops. - The second army order deals with a complaint of the Duke of Mecklenburg that the Brandenburg troops ruthlessly provian themselves in his country and organized "all kinds of invitations", also a magazine in Neubrandenburg ransacked. The Elector exhorts the commanders to deal with the Duke of Mecklenburg more gently. Although the supply of the army is absolutely necessary, one should deal with the Duke "as a formidable state of the empire a bit glamourous", so that the actions "must be least of the same to be forced to be communalized". - Unusual document from the Brandenburg-Swedish war, with double signature of the Elector.