The Peace of St-Germain that concluded the third civil war in August 1570 promised much in the way of establishing a genuine and lasting peace. With legal provisions for enforcing the reintegration of the Huguenots back into the mainstream of French society introduced by the peace edict, with the Protestant queen of England seeking to strengthen ties with France with a possible marriage to one of the king's younger brothers, and with Catherine de Medici herself seeking to strengthen the bonds between the crown and the Huguenots by trying to arrange a marriage between her daughter Marguerite and the Protestant Henry of Navarre, the period following the conclusion of the third civil war offered hope that the calamities and horrors of war of the previous decade might be excised. Nevertheless, the diplomatic efforts of the political leadership to engender harmony with the Huguenots only heightened the fears of those Catholics throughout the kingdom, who had been raising the stakes of religious violence in the late 1560s. Thus, diplomatic efforts at court to create a lasting peace and restore order masked the further polarization of the Protestant and Catholic communities among the popular classes. At the same time, many Catholic nobles at court were becoming alarmed at the increasingly radical – and sometimes revolutionary – rhetoric of much Huguenot political polemic published since 1567.