Petrus Joannis Janssen
- Born on May 28, 1787 in Hamont-Achel
- Deceased on October 29, 1853, at the age of 66 years
Parents
- Christian Janssen (1737 - 1804)
- Joanna Maria Cuypers ( - 1789)
Family
- Married with Constance Jeanne Philippe Matthys (1813 - 1893), issuing
Pauline (1836 - 1915)- Constantia Bertha (1846 - 1869)
- Louis Pierre Joseph Laurent (1848 - 1900)