Charles de Pitteurs (1829-1924), het zwarte schaap van de familie, accessed at: http://home.scarlet.be/~zepperen/pg010.html
<b>1874 - 1889 Zepperen (near Saint-Trond), Bogaardenklooster</b> Charles Joseph Henri Théodore de Pitteurs - Hiegaerts, + 14.6.1924. Doctor of science. Took photomicrographs. Founder member of the ABP. President of the ABP from 1880 to 1883. <b>1890 - 1894 Bruxelles</b> His library was auctioned in 1894, perhaps coinciding with a period of financial difficulty. A genealogical website characterizes de Pitteurs as the black sheep of his family, in particular for sexual impropriety and an episode in judicial custody.