The Leriger (or Lerigé, Leriget) of Montréal (actually of Laprairie, across the St. Lawrence River from Montréal)became Laplante as well due to a marriage before 1631 in the Charente region of France. Antoine Leriget, Sieur de La Taillandiere married one Andree Mesturas, daughter of ____ Mesturas, called Sieur de Laplante. Laplante was the name of the family estate. As was customary then, the title of the wife passed into the family of the husband. So, the child of this marriage, Paul Leriget, was called Sieur de Laplante, as was his half-brother Jacques. The title followed into Québec for several generations. After a time, and with 'dit' names and all, the majority of the descendants left the name Leriger, going instead by Laplante. This is one 'origin of Laplante'.