A demesne or domain was all the land retained and managed by a lord of the manor under the feudal system for his own use, occupation, or support. This distinguished it from land subinfeudated by him to others as sub-tenants. In contrast, the entire territory controlled by a monarch both directly and indirectly via their tenant lords would typically be referred to as their realm. The concept originated in the Kingdom of France and found its way to foreign lands influenced by it or its fiefdoms.