Rubuta ci gaba ga wannan sakin layi - A cikin 1633, ya jagoranci rundunar Curonian a cikin Smolensk War
tsakanin Polish-Lithuanian Commonwealth da Rasha. A shekara ta 1634, ya yi tafiya mai nisa zuwa Turai, ya ziyarci Paris, London, da Amsterdam, inda ya yi nazarin gina jiragen ruwa. A shekara ta 1638, ya zama abokin mulkin masarautar kuma a shekara ta 1642 shi kadai Duke na Courland.