Thirty years. - Ferdinand III, Roman-dt. Emperor (1608-1657). Letter m. U. "Ferdinand" as well as address and paper-covered seal. 2 pp. Folio. Vienna 18.III.1642. To Jost Maximilian Counten von Bronckhorst and Gronsfeld (1598-1662). About the accommodation of auxiliary troops ("Lamboysche Völckher", named after the general Guillaume de Lamboy, ca. 1590-1659) in approximate positions. He had heard that they had been expelled to the Archdiocese of Trier. However, this was already completely overloaded by Lorraine troops and also unprotected. Bronckhorst may therefore distribute the Lamboy troops in Hesse-Darmstadt, the Westerwald, the County of Waldeck and the Wetterau and ensure their maintenance until they can be used against the approaching enemy. - At the bottom of p. 1 small notes by old hand about Ferdinand III. Otherwise well preserved.