Whakakiia te rerenga e whai ake nei: I te tau 1633, i arahi ia i tētahi rārangi Curonian i te
Smolensk War i waenga i te Polish-Lithuanian Commonwealth me Russia. I te tau 1634, i haere ia ki Uropi, i haere ki Paris, ki Rānana, ki Amsterdam, i reira ia i ako ai ki te hanga kaipuke. I te tau 1638, ka noho ia hei rangatira o te rangatira, a, i te tau 1642, ko ia anake te Duke o Courland.