Jacob Kettler (German: Jakob von Kettler; Latvian: Hercogs Jēkabs Ketlers; 28 October 1610 – 1 January 1682) was Duke of Courland and Semigallia from 1642...

Frederick Casimir Kettler (German: Friedrich Casimir Kettler; 6 July 1650 – 22 January 1698) was Duke of Courland and Semigallia from 1682 to 1698. Frederick...

After the death of his father, Jacob Kettler, in 1682, the duchy passed to Ferdinand's older brother, Frederick Casimir Kettler. Frederick was in the Polish...

emigrated due to conflicts with the nobility. Friedrich Kettler was born to Gotthard Kettler and his wife, Anna of Mecklenburg. The first of two sons...

August 1676), was a Duchess consort of Courland by marriage to Duke Jacob Kettler of Courland. She was born to George William, Elector of Brandenburg...

marriage to Charles I, Landgrave of Hesse-Kassel. She was a daughter of Jacob Kettler, Duke of Courland and Semigallia and Margravine Louise Charlotte of...

the dukes from the House of Kettler with the exception of Ernst Johann Biron and his son Peter von Biron. Gotthard Kettler, the last Master of the Livonian...

vassal of the Polish–Lithuanian Commonwealth at that time. Under Duke Jacob Kettler (ruled 1642-1682), a Baltic German, it established one of the largest...

Semigallia portion. Born in Mitau in 1574, Wilhelm Kettler was the youngest son of Gotthard Kettler and his wife, Anna of Mecklenburg. After their father's...

red at the top, and right at the bottom. During the reign of duke Jacob Kettler, which lasted from 1642 to 1682, the naval ensign flown by ships used...