countess Katerina, lady of Celje, co-heiress of Slovene lands of Heunburg

- Abt 1316

Parents

• Ulrich II, Count of Heunburg
• Agnes of Baden

Children

• Anna von Zovnek (Sannegg)
• Frederick I, Count of Celje

Siblings

• Elisabeth von Heunburg
• countess Margareta, co-heiress of Heunburg
• Friedrich von Heunburg

Partners

• Ulrich II. of Sanneck