Wal·len·stein 
(wŏlən-stīn′, välən-shtīn′), Albrecht Eusebius Wenzel von Duke of Friedland and Mecklenburg. 1583-1634.
(wŏlən-stīn′, välən-shtīn′), Albrecht Eusebius Wenzel von Duke of Friedland and Mecklenburg. 1583-1634. Bohemian military leader who fought for the Habsburgs during the Thirty Years' War (1618-1648).