Career
She was the sovereign Duchess of Wadowice during 1494–1503. Agnes received Wadowice only as an earthly possession without the Ducal power. However, in practice she was called "Sovereign Duchess of Wadowice".
After nine years of rule, in 1503 King Alexander of Poland granted Wadowice to Piotr Myszkowski of MiróWest
Agnes fought for her heritage, but the following year (1504) the King confirmed the possession of Wadowice to Piotr. Agnes married before 1504 to January Kobierzycki, Count of Tworkow and Kobierzyn.
They had one son.
