Desmesne

In the feudal system the demesne (/dᵻˈmeɪn/ di-MAYN) was all the land which was retained by a lord of the manor for his own use and support, under his own management, as distinguished from land sub-enfeoffed by him to others as sub-tenants. In England royal demesne is the land held by the Crown, and ancient demesne is the legal term for the land held by the king at the time of the Domesday Book.

The word derives from Old French demeine, ultimately from Latin dominus, "lord, master of a household" – demesne is a variant of domaine with an unetymological s inserted.

The word barton, which is an element found in many place-names, can refer to a demesne farm: it derives from Old English bere (barley) and ton (enclosure).

The system of manorial land tenure, broadly termed feudalism, was conceived in Western Europe, initially in France but exported to areas affected by Norman expansion during the Middle Ages, for example the Kingdoms of England, Sicily, Jerusalem, Scotland, and Ireland.

In this feudal system the demesne was all the land retained under his own management by a lord of the manor for his own use and support. It was not necessarily all contiguous to the manor house. A portion of the demesne lands, called the lord's waste, served as public roads and common pasture land for the lord and his tenants. Most of the remainder of the land in the manor was sub-enfeoffed by the lord to others as sub-tenants.

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