As the mother of later Emperor Frederick III, Cymburgis, after Gertrude of Hohenberg, became the second female ancestor of all later Habsburgs, as only her husband's Ernestine branch of the family survived in the male line.

Though his elder brother William's engagement with the Polish princess Jadwiga had mortifyingly failed, Duke Ernest the Iron, after the death of his first wife Margaret of Pomerania, proceeded to Kraków in disguise to court Cymburgis.

Upon the death of his brothers William and Leopold IV, Ernest became the sole ruler of the Inner Austrian territories, while his cousin Albert V ruled over the Duchy of Austria proper.

[4] Tradition has it that she was also known for her exceptional strength, which, for example, she showed by driving nails into the wall with her bare hands and cracking nuts between her fingers.

[5] Cymburgis outlived her husband and died on a pilgrimage to Mariazell while staying at Türnitz (in present-day Lower Austria).