Afterwards, with his father-in-law's support, Andrew managed to defeat the revolt of Miklós Kőszegi and Máté Csák III, and occupy the castles of Kőszeg and Pozsony.

Since she was small of stature, she used to wear dresses her sisters no longer wanted, which gained her praise for modesty.

Agnes became a patroness of Königsfelden Monastery in the County of Tyrol, which had been founded by her mother in memory of her late husband.

In 1351, she solved a dispute between Basel and Bremen and did the same in the same year for Albert II, Duke of Austria and the Swiss Confederacy.

The Book of Divine Consolation written by Meister Eckhart was likely partially intended as a gift for Agnes.