The Peace and Truce of God (Latin: Pax et treuga Dei; German: Gottesfrieden; French: Paix de Dieu; Catalan: Pau i Treva de Déu) was a movement in the Middle Ages led by the Catholic Church and the first mass peace movement in history.[1] The goal of both the Pax Dei and the Treuga Dei was to limit the violence of feuding endemic to the western half of the former Carolingian Empire – following its collapse in the middle of the 9th century – using the threat of spiritual sanctions.[2] The eastern half of the former Carolingian Empire did not experience the same collapse of central authority, and neither did England.[3]
The Peace of God was first proclaimed in 989, at the Council of Charroux. It sought to protect ecclesiastical property, agricultural resources and unarmed clerics.[4] The Truce of God, first proclaimed in 1027 at the Council of Toulouges, attempted to limit the days of the week and times of year that the nobility engaged in violence.The movement survived in some form until the thirteenth century.
Source: Peace and Truce of God – Wikipedia
Tim B.
Robert the Pious (996–1031) espouses an oath that combines both religious movements:
“I will not infringe on the Church in any way. I will not hurt a cleric or a monk if unarmed. I will not steal an ox, cow, pig, sheep, goat, ass, or a mare with colt. I will not attack a villain or villainess or servants or merchants for ransom. I will not take a mule or a horse male or female or a colt in pasture from any man from the calends of March to the feast of the All Saints unless to recover a debt. I will not burn houses or destroy them unless there is a knight inside. I will not root up vines. I will not attack noble ladies traveling without husband nor their maids, nor widows or nuns unless it is their fault. From the beginning of Lent to the end of Easter I will not attack an unarmed knight.[26]”
Tim B.
https://en.wikipedia.org/wiki/C%C3%A1in_Adomn%C3%A1in