People Belgium Theodorus Janssen peoplepill id: theodorus-janssen-1TJ 3 views today 3 views this weekTheodorus JanssenBiographyListsAlso ViewedListsTheodorus Janssen is in following listsBy work and/or countryNotable Belgian peopleGender:Male, Born in:Years 1800 to 1849From our partnersSponsoredTheodorus Janssen