Wilhelm was born in 1361/62, the son of Ulrich II von Cilli and Adelheid von Ortenburg. The place is not known.
He died on 19 SEP 1392. The place is not known.
His wife was Anna Piast. They were married, but the date and place have not been found. Their only known child was Anna (1380-1416).
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Wilhelm von Cilli |
Ulrich II von Cilli |
Friedrich I von Cilli |
Ulrich I (II) von Cilli |
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Diemut von Wallsee |
I Ulrich I von Walsee |
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Diemut von Rohrau |
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Adelheid von Ortenburg |
Heinrich III von Ortenburg |
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Adelheid von Schaunberg |
Heinrich IV von Schaunberg |
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Agnes von Neuhaus |
| Event | Date | Details | Source | Multimedia | Notes |
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| Birth | 1361/62 |
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| Death | 19 SEP 1392 |
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