births
Jacob Kettler, 3rd duke of Courland and Semigallia (died 1682)
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Jacob Kettler
Duke of Courland and Semigallia from 1642 to 1682
Jacob Kettler was Duke of Courland and Semigallia from 1642 to 1682. Under his rule, Courland and Semigallia became more independent of its Polish suzerain, reached its peak in wealth, and even engaged in its own overseas colonization, making it one of the smallest, but fastest…Source: Wikipedia (CC BY-SA)
Duchy of Courland and Semigallia
1561–1795 Polish–Lithuanian vassal state in the Baltics
The Duchy of Courland and Semigallia was a duchy in the Baltic region, then known as Livonia, that existed from 1561 to 1569 as a nominal vassal state of the Grand Duchy of Lithuania and subsequently made part of the Crown of the Polish Kingdom from 1569 to 1726 and incorporated…Source: Wikipedia (CC BY-SA)