In the Middle Ages, especially under the European feudal system, feoffment or enfeoffment was the deed by which a person was given land in exchange for a pledge of service. This mechanism was later used to avoid restrictions on the passage of title in land by a system in which a landowner would give land to one person for the use of another. The common law of estates in land grew from this concept.
In English law, feoffment was a transfer of land or property that gave the new holder the right to sell it as well as the right to pass it on to his heirs as an inheritance. It was total relinquishment and transfer of all rights of ownership of an estate in land from one individual to another. In feudal England a feoffment could only be made of a fee (or "fief"), which is an estate in land, that is to say an ownership of rights over land, rather than ownership of the land itself, the only true owner of which was the monarch under his allodial title. Enfeoffment could be made of fees of various feudal tenures, such as fee-tail or fee-simple.
The conveyance or delivery of possession, known as livery of seisin was effected generally on the site of the land in a symbolic ceremony of transfer from the feoffor to the feoffee in the presence of witnesses. Written conveyances were customary and mandatory after 1677.
The feoffee was thenceforward said to hold his property "of" or "from" the feoffor, in return for a specified service depending on the exact form of feudal land tenure involved in the feoffment. Thus for every holding of land during the feudal era there existed an historical unbroken chain of feoffees, in the form of overlords, ultimately springing from feoffments made by William the Conqueror himself in 1066 as the highest overlord of all.