Westerholt and Gysenberg
Westerholt and Gysenberg is the family name of
- Wilhelm von und zu Westerholt and Gysenberg (1782–1852), Prussian district administrator
- Friedrich Otto von und zu Westerholt and Gysenberg (1814–1904), Prussian manor owner and member of parliament
- Egon von und zu Westerholt and Gysenberg (1844–1923), Prussian manor owner and member of parliament
- Wilhelmine von und zu Westerholt-Gysenberg (1773-1852), Beethoven's childhood sweetheart