In 1566 Louis of Nassau was one of the leaders of the league of lesser nobles who signed the "Compromis des Nobles" which was an open letter to King Philip II of Spain (From 1555 he was Lord of the Seventeen Provinces of the Netherlands) stating that he should withdraw the Inquisition in the Netherlands.
It was probably drafted by Philips of Marnix, Lord of Saint-Aldegonde, and it was initially signed by Henry, Count of Brederode, Louis of Nassau and Count Charles of Mansfeld. The Compromise of Nobles (Dutch: Eedverbond der Edelen; French: Compromis des Nobles) was a covenant of members of the lesser nobility in the Habsburg Netherlands who came together to submit a petition to the Regent Margaret of Parma on 5 April 1566, with the objective of obtaining a moderation of the placards against heresy in the Netherlands. The ruler of the Habsburg Netherlands, a conglomerate of duchies and counties and lesser fiefs, was Philip II of Spain. From 1555 he was Lord of the Seventeen Provinces of the Netherlands. In the petition the nobles, who presented themselves as loyal subjects of the king, asked him to suspend the Inquisition and the enforcement of the placards against heresy. 
