After studying at Leipzig he became librarian and court mathematician to Frederick III, and in 1633 he was appointed secretary to the ambassadors Philipp Crusius, jurisconsult, and Otto Bruggemann, a merchant from Hamburg, sent by the duke to Muscovy and Persia in the hope of making arrangements by which his newly founded city of Friedrichstadt should become the terminus of an overland silk-trade.
This embassy started from Gottorp on 22 October 1633[1] and travelled by Hamburg, Lübeck, Riga, Dorpat (five months' stay), Reval, Narva, Ladoga, and Novgorod to Moscow (14 August 1634).
Here they concluded an advantageous treaty with Tsar Michael of Russia, and returned forthwith to Gottorp (14 December 1634 – 7 April 1635) to procure the ratification of this arrangement from the duke, before proceeding to Persia.
Under his care the Gottorp library and cabinet were greatly enriched in manuscripts, books, and oriental and other works of art: in 1651 he purchased, for this purpose, the collection of the Dutch scholar and physician, Bernardus Paludanus [nl] (born Berent ten Broecke).
[1] A French version of the Beschreibung was published by Abraham de Wicquefort (Voyages en Moscovie, Tartarie et Perse, par Adam Olearius, Paris, 1656), an English version was made by John Davies of Kidwelly (Travels of the Ambassadors sent by Frederic, Duke of Holstein, to the Great Duke of Muscovy and the King of Persia, London, 1662; and 1669),[3] and a Dutch translation by Dieterius van Wageningen (Beschrijvingh van de nieuwe Parciaensche ofte Orientaelsche Reyse, Utrecht, 1651); an Italian translation of the Russian sections also appeared (Viaggi di Moscovia, Viterbo and Rome, 1658).