Question: Who is Sibylle Of Jülich-Cleves-Berg's father?
Sentence (from "Sibylle of Jülich-Cleves-Berg"): Sibylle of Jülich-Cleves-Berg, Margravine of Burgau (26 August 1557 in Cleves – 1628 in Günzburg) was the daughter of Duke William the Rich and his second wife, Archduchess Maria of Austria.
Relevant evidence: Yes