William the Conqueror
A church council met in October 1047 near the battlefield to consider a new Truce of God. No private wars would be allowed from Wednesday evening through Monday morning. Also no such fighting was allowed during Advent, Lent, Easter and Pentecost. This followed other such truces in place elsewhere in France. But the king and duke were both excluded from this truce. They were allowed to wage war during these times to keep the peace. William's peace in Normandy was now supported by the church.