Pierre (or Pieter) Mortier of Leiden (1661-1711), the son of a Huguenot emigrant from France, obtained the privilege of printing French maps in Holland in 1690. He also published musical scores, in competition with Estienne Roger of Amsterdam.
After Mortier's death his widow continued the business, and after her death in 1719 his son Cornelis (1699-1783), took over. In partnership with Johannes Covens I (1697-1774) Cornelis operated Covens_en_Mortier, the most important map publishing business of his time, which lasted for 140 years.
Estienne Roger et Pierre Mortier. Un épisode de la guerre des contrefaçons à Amsterdam François Lesure Revue de Musicologie T. 38, No. 113 (Jul., 1956), pp. 35-48 Published by: Société Française de Musicologie DOI: 10.2307/927304
Stable URL: http://www.jstor.org/stable/927304