His compositions mainly consist of songs and motets considered characteristic of the culture of Central Europe in the Middle Ages.
de Grudencz began his studies at the University of Kraków in 1418.
In the 1440s he was a chaplain to Frederick III in Vienna, although was not a singer in the chapel but moved principally in various university circles.
[1] While fewer than twenty of his works have survived, including Kyrie fons bonifitatis and the five-voice motet Panis / Panis / Pange / Patribus / Tantum, they can be securely attributed on account of containing acrostics of the composer's name.
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