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In page Albrecht von Wallenstein:

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He grouped his new possessions into a territory called Friedland (Frýdlant) in northern Bohemia. A series of successes in battle led to Wallenstein becoming in 1622 an imperial count palatine, in 1623 a prince, and in 1625 Duke of Friedland.[2] Wallenstein proved an able administrator of the duchy[3] and sent a large representation to Prague to emphasize his nobility.[citation needed]