May 1, 1893 - The birth of the first 'de Groenendael' litter from the black foundation couple of Picard d'Uccle and Petite. BBA p8|
The female Belgian Shepherd Mirza, on July 19, 1898, had a litter of 12 puppies by Carlo (de Boitsfort). Mirza has had 42 puppies in 19 months Both Carlo and Mirza are owned by Henri Smets of Boitsfort.
(Chasse et Peche announcement)