Trêve de Dieu
In the High Middle Ages from the 11th century onwards, the "Landfrieden" movement strove to extend the so-called Peace and Truce of God ("Gottesfrieden"). The first imperial "Landfriede" was established by Emperor Henry IV in 1103 for a term of four years and was known as the First Imperial Peace of Mainz ("Erster Mainzer Reichslandfriede"). It followed the Mainz Peace and Truce of God ("Mainzer Gottesfrieden") which he had already proclaimed in 1085.