This man founded the Dieppe Company and signed the Treaty of Vervins, ending a war with Spain. He defeated the Duke of Mayenne in the Battle of Ivry and the Battle of Arques and defeated the Duke of Guise in the Battle of Coutras. This man's marriage to Margaret of Valois in the "secret nuptials" occurred six days before the assassination of his aide, the Admiral de Coligny. This ruler was assassinated by François Ravaillac, and he fought against the Catholic League. Catherine de Medici instigated the St. Bartholomew's Day Massacre against him, and For 10 points, name this first Bourbon king of France, who issued the 
This man founded the Dieppe Company and signed the Treaty of Vervins, ending a war with Spain. He defeated the Duke of Mayenne in the Battle of Ivry and the Battle of Arques and defeated the Duke of Guise in the Battle of Coutras. This man's marriage to Margaret of Valois in the "secret nuptials" occurred six days before the assassination of his aide, the Admiral de Coligny. This ruler was assassinated by François Ravaillac, and he fought against the Catholic League. Catherine de Medici instigated the St. Bartholomew's Day Massacre against him, and For 10 points, name this first Bourbon king of France, who issued the Edict of Nantes.
This man founded the Dieppe Company and signed the Treaty of Vervins, ending a war with Spain.
Henry IV [accept Henry Navarre; prompt on Henry]