Ernest Casimir I, Count of Nassau-Dietz

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Ernest Casimir I
Portrait of Ernst Casimir van Nassau-Dietz (Wybrand de Geest, 1633).jpg
Portrait by Wybrand de Geest
Count of Nassau-Dietz
Reign8 October 1606 – 2 June 1632 (1606-10-08 – 1632-06-02)
SuccessorHenry Casimir I
Stadtholder of Friesland
Reign13 July 1620 – 2 June 1632 (1620-07-13 – 1632-06-02)
PredecessorWilliam Louis
SuccessorHenry Casimir I
Stadtholder of Groningen and Drenthe
Reign23 April 1625 – 2 June 1632 (1625-04-23 – 1632-06-02)
PredecessorMaurice of Orange
SuccessorHenry Casimir I
BornErnst Casimir
(1573-12-22)22 December 1573
Dillenburg, Nassau-Dillenburg
Died2 June 1632(1632-06-02) (aged 58)
Roermond, Duchy of Guelders
Burial
SpouseSophia of Brunswick-Lüneburg
Issue
HouseHouse of Nassau-Dietz
FatherJohn VI of Nassau-Dillenburg
MotherElisabeth of Leuchtenberg

Ernest Casimir I (22 December 1573 – 2 June 1632) was a Count of Nassau-Dietz and Stadtholder of Friesland, Groningen and Drenthe.

Biography[edit]

He was the 11th child of John VI, Count of Nassau-Dillenburg, and Countess Elisabeth of Leuchtenberg. After the death of his father, his counties Nassau-Dillenburg, Nassau-Siegen, Nassau-Dietz, and Vianden were divided among his five living sons. Ernest Casimir followed him as Count of Nassau-Dietz. In 1631, he inherited the small county of Spiegelberg near Lauenstein.

Ernest Casimir was primarily known as an outstanding military leader during the Eighty Years' War. He served under Maurice of Nassau, Prince of Orange, in the siege of the cities of Steenwijk and Oldenzaal, and Frederick Henry, Prince of Orange, during the Siege of Groenlo and the Siege of 's-Hertogenbosch. As Stadtholder of Groningen, he founded the Nieuweschans fortress in 1628. Although he owned little in Friesland, he was popular there, and people granted his heir the right to rule after his death.

He was killed by a bullet at the siege of Roermond while he was inspecting the trenches in June 1632. His son, Henry Casimir I, succeeded him as count of Nassau-Dietz and as Stadtholder of Friesland, Groningen and Drenthe.

Family[edit]

In 1607, Ernest Casimir married Sophia Hedwig of Brunswick-Lüneburg, daughter of Henry Julius of Brunswick-Lüneburg. They had nine children:

  1. stillborn daughter (1608)
  2. stillborn son (1609)
  3. unnamed son (1610)
  4. Henry Casimir I, Count of Nassau-Dietz (21 January 1612 – 13 July 1640)
  5. William Frederick, Prince of Nassau-Dietz (7 August 1613 – 31 October 1664), married Albertine Agnes of Nassau
  6. Elizabeth (25 July – 18 September 1614)
  7. John Ernest (29 March – May 1617)
  8. Maurice (21 February 1619 – 18 September 1628)
  9. Elizabeth Friso (25 November 1620 – 20 September 1628)

Ancestors[edit]

Ancestors of Ernest Casimir I, Count of Nassau-Dietz
16. Jan IV of Nassau
8. John V of Nassau-Dillenburg
17. Maria of Loon-Heinsberg
4. William I of Nassau-Dillenburg
18. Henry III of Upper Hesse
9. Elisabeth of Hesse-Marburg
19. Anna of Katzenelnbogen
2. John VI of Nassau-Dillenburg
20. Henry IX of Stolberg
10. Bodo VIII of Stolberg-Wernigerode
21. Matilda of Mansfeld
5. Juliana of Stolberg
22. Philip I of Eppstein-Königstein
11. Anna of Eppstein-Königstein
23. Louise de la Marck
1. Ernest Casimir I of Nassau-Dietz
24. Frederick V of Leuchtenberg
12. John IV of Leuchtenberg
25. Dorothea of Rieneck
6. George III of Leuchtenberg
26. Günther XXXVIII of Schwarzburg
13. Margaret of Schwarzburg
27. Catherine of Querfurt
3. Elisabeth of Leuchtenberg
28. Albert III Achilles
14. Frederick I of Brandenburg-Ansbach
29. Anna of Saxony
7. Barbara of Brandenburg-Ansbach-Kulmbach
30. Casimir IV of Poland
15. Sophia Jagiellon of Brandenburg-Ansbach
31. Elizabeth of Austria

References[edit]

External links[edit]

Ernest Casimir I, Count of Nassau-Dietz
Born: 22 December 1573 Died: 2 June 1632
Regnal titles
New creation Count of Nassau-Dietz
1606–1632
Succeeded by
Henry Casimir I
Political offices
Preceded by
William Louis
Stadtholder of Friesland
1620–1632
Succeeded by
Henry Casimir I
Preceded by
Maurice of Orange
Stadtholder of Groningen and Drenthe
1625–1632