"Ferdinand Kettler (November 1, 1655 - May 4, 1737) was the Duke of Courland and Semigallia from 1730 to 1737. He was married to Johanna Magdalene of Saxe-Weissenfels in 1730." - (en.wikipedia.org 13.10.2020)
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| son of | Jacob Kettler [father of], Margravine Louise Charlotte of Brandenburg [mother of] ↓ |
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