Nicolas Arnold Isidor Claessens
- Born on June 25, 1807 in Liège
Parents
- Jean Guillaume Claessens (1782 - 1837)
- Joséphine Hedwidge Digneffe (c. 1785 - 1849)
Family
- Married with Marie Elisabeth Joséphine Bettonville (1820 - ), issuing
- Fernand Jean Nicolas (1854 - )
Flore Alexandrine Marie (1858 - )