Willbirg (Wilbirg, Wilpirg) of Helfenstein (Q116687953)
Countess of Hardegg (Hardeck), Heiress of the County of Hardegg, died 1314
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aliases Willbirg (Wilbirg, Wilpirg) of Hardegg
Willbirg (Wilbirg, Wilpirg) of Hardeck
description Countess of Hardegg (Hardeck), Heiress of the County of Hardegg, died 1314

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