John Casimir, Count Palatine of Kleeburg
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John Casimir, Count Palatine of Zweibrücken-Kleeburg (1589-1652) was the son of John I, Count Palatine of Zweibrücken. With the division of the county in 1604, John Casimir became the Count of Palatine-Kleeburg.
Casimir married Catharina of Sweden and their son became King Charles X of Sweden.