To her he wrote in 1560 a letter to express his concern with the budding wars of religion: Madam, within a year, the fire will be even more up;His cousin Robertet de Fresne succeeded his father-in Clausse Marchaumont.
The prince said that he would not disarm if M. de Guise did not withdraw from the court, if not punished for the act of Vassy.
In this same year 1562, he was appointed by the queen mother and the princes of the House of Lorraine to go to the Duke of Savoy to maintain his neutrality, over the ruinous repayment by Turin and Piedmont that France: but the Duke of Guise wanted to please the Duchess of Savoy, and allied.
A few months later, the Constable de Montmorency and a French army defeated the Earl of Warwick and the English.
Florimond III d'Alluye died as Secretary of State in 1569, two years after his cousin Robertet de Fresne.