Louis-Joseph François, Jean-Henri Gruyer, Pierre-René Rogue were martyred during the French Revolution. In October 2005, the Congregation for Divine Worship added John Charles Caron and Nicholas Colin to the feast entitled: “Memorial of Blessed Louis Joseph François and Companions, Martyrs”.
The previous links give more detailed information about each of these martyrs, even the two recent additions.
See also Vincentian Martyrs of the French Revolution.
See also this feature on Rene Rogue