Advowson (or "patronage") is the right in English law of a patron (avowee) to present to the diocesan bishop (or in some cases the ordinary if not the same person) a nominee for appointment to a vacant ecclesiastical benefice or church living, a process known as presentation (jus praesentandi, Latin: "the right of presenting"). The word derives, via French, from the Latin advocare, from vocare "to call" plus ad, "to, towards", thus a "summoning". In effect, an advowson is the right to nominate a person to be parish priest (subject to episcopal approval), and such right was often originally held by the lord of the manor of the principal manor within the parish.
Legally, advowsons were treated as real property that could be held or conveyed, and conversely could be taken or encumbered, in the same general manner as a parcel of land. Advowsons were one of the earliest incorporeal hereditaments, and often held in fee tail. Litigation on the basis of an advowson was somewhat specialized, with unique forms of action inapplicable to other realty, such as the writ of quare impedit, by which a patron sued a bishop in support of his presented candidate being unreasonably hindered from succeeding to a benefice.
Following reforms of parish administration in the late 19th century (principally the imposition of secular parishes and wider county and district authorities) the advowson had negligible commercial value. The Benefices Act 1898 (Amendment) Measure 1923 phased out advowsons so that they could not be sold or inherited after two vacancies occurred after 14 July 1924 and enabled their elimination earlier by direction of the current patron.
The rich body of common law regarding advowsons can sometimes become relevant in modern times when dealing with disputes over modern incorporeal hereditaments, such as farming allotments, that are not handled by statute or adequately settled by other common law. This took place in the 1980 case of First Victoria National Bank v. United States.