Question: Where was the place of death of John Casimir, Count Palatine Of Kleeburg's mother?
Sentence (from "Magdalene of Jülich-Cleves-Berg"): So, when her brother, Duke John William, died in 1609 without a male heir of his own, both she and William's daughters could play a vital role in the question of who would inherit the important northwest German territory.
Relevant evidence: No