Shortly after the massacre as France descended back into civil war, Thoré, lacking military experience and keen to prove himself militarily joined the siege of La Rochelle.
Despite this loss, the main mercenary force would enter France in early 1576, and in combination with Alençon's escape from court the crown would be pressured into the favourable Peace of Monsieur.
[1] His second son Henri I de Montmorency-Damville also made Marshal and then Constable of France inherited his father's governorship of Languedoc an office he held from 1563-1614.
'[6] On the morning of the Massacre of Saint Bartholomew the prévot des marchands Claude Marcel offered a warning to Thoré to stay off the streets and hold up in his residence, if he valued his safety as it 'wasn't a good day for his house'.
[8] With civil war quickly following in the wake of the massacre as Protestant communities in the south withdrew their obedience to the crown, Thoré and his brother Méru were keen to earn their military reputations, and hurried to join the siege of La Rochelle.
[11] Montmorency who had been arrested shortly after the exposure of the conspiracy despite his limited involvement remained imprisoned, as it was hoped his captivity could be used to pressure Thoré and Méru to return from Germany.
[12] However to placate Alençon and detach him from the conspiracy, it was felt it was necessary to release Montmorency from the Bastille in late 1575, removing the threat hanging over Thoré's head.
[13] Due to the poor financial situation of the crown Guise was forced to rely on his own funds to prepare his defences, successfully bringing him to battle at Dormans where he defeated Thoré's mercenary vanguard.