Their other prominent leader, Admiral Gaspard de Coligny, was among thousands killed on August 24th, 1572, the feast day of St. Bartholomew.  
They first rose to prominence during the "affair of the placards," after which many of them fled to the protection of Martin Bucer in Strasbourg, rather than suffer the fate of Jean Valliere, who had been the first to die at the stake.  The Conspiracy of Amboise, a failed attempt to kidnap the king, ended in the execution of all plotters but one, the Prince de Conde. After the soldiers of the Guise family committed the massacre of Vassy, Conde rose in revolt under the terms of the Manifesto of Orleans. Their other prominent leader, Admiral Gaspard de Coligny, was among thousands killed on August 24th, 1572, the feast day of St. Bartholomew.  FTP identify these subjects of the Edict of Nantes, the reformed Protestants of France.
They first rose to prominence during the "affair of the placards," after which many of them fled to the protection of Martin Bucer in Strasbourg, rather than suffer the fate of Jean Valliere, who had been the first to die at the stake.  
the Huguenots