In the emerging Kingdom of Germany, her father tried to maintain the autonomy of his Bavarian stem duchy and entered into several conflicts with King Conrad I as well as with his Ottonian successor Henry the Fowler.

Judith's elder brother Eberhard succeeded his father as Bavarian duke in 937 and again picked a fierce quarrel with Henry's son King Otto I.

[1] Through this matrimonial alliance between the Luitpolding and Ottonian dynasties, the Bavarian duchy entered the growing Kingdom of Germany, and Judith's descent would back the recognition of her husband's rule.

[2] She turned out as a capable ruler over the vast Bavarian territories when she married her daughter Hadwig to Duke Burchard III of Swabia and also arranged the marriage of Henry the Wrangler with Princess Gisela of Burgundy, thereby forging a stable alliance between the South German duchies and the Burgundian kingdom.

Some sources mention a younger, possibly illegitimate son of her husband named Brun, who married and had descendants, though an affiliation with the Brunswick Brunonids has not been conclusively established.