Willbirg (Wilbirg, Wilpirg) of Helfenstein
Countess of Hardegg (Hardeck), Heiress of the County of Hardegg, died 1314
(1300–1314)
Parents
Willibirg von Dillingen
Ulrich II, Count of Helfenstein
Children
Siblings
Agnes of Helfenstein
Ulrich III, Count of Helfenstein
Partners
Henry of Dewin-Hardegg
Berthold von Rabenswalde von Hardegg
Otto of Plain and Hardegg