Otto of Plain and Hardegg
Count of Plain and Hardegg, died 1260 during the battle of Staatz
(1300–1260)
Parents
Konrad I, Graf von Plain und Hardegg
Berta
Children
Siblings
Konrad of Plain and Hardegg
Agnes, Gräfin von Plain und Hardegg
Partners
Willbirg (Wilbirg, Wilpirg) of Helfenstein