In
medieval Europe, an oath of fealty (German:
Lehnseid) was a fundamental element of the
feudal system in the Holy Roman Empire. It was sworn between two people, the feudal subject or liegeman (
vassal) and his feudal superior (
liege lord). The oath of allegiance was usually carried out as part of a traditional ceremony in which the liegeman or vassal gave his lord a pledge of loyalty and acceptance of the consequences of a breach of trust. In return, the liege lord promised to protect and remain loyal to his vassal. This relationship formed the basis of landholding, known as feudal tenure, whereby the
seizin vested in the tenant (the vassal) was so similar to actual possession that it was considered a separate
estate described as utile domain (
dominium utile), literally "beneficial ownership", whereas the landlord's estate was referred to as eminent domain or superiority (
dominium directum, lit. "direct ownership"). In the
Late Middle Ages, the investiture and oath of fealty were invariably recorded by a deed; in modern times, this replaced the traditional ceremony. Where the geographical distance between the two parties was significant, the lord could name a representative before whom the oath was to be sworn. The whole contract including the oath of fealty was part of a formal
commendation ceremony that created the feudal relationship. The term is also used by English-speakers to refer to similar oaths of allegiance in other feudal cultures, as with
medieval Japan, as well as in modern organized crime. == Citations ==