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Peerages and baronetcies of Britain and Ireland
Extant	All
Dukes	Dukedoms
Marquesses	Marquessates
Earls	Earldoms
Viscounts	Viscountcies
Barons	Baronies
En, Sc, GB, Ire, UK (law, life: 1958–1979, 1979–1997, 1997–2010, 2010–2024, 2024–present)
Baronets	Baronetcies

The peerage is the collective term for all those holding titles of nobility of all degrees. The term superseded the term baronage used of the feudal era. A barony is a rank or dignity of a man or a woman who is a participant of a small rank of a British nobility.

Barony categories

Life baronies

The life baronies fall into two classes:

List of life peerages (created under the Life Peerages Act 1958):
- List of life peerages (1958–1979)
- List of life peerages (1979–1997)
- List of life peerages (1997–2010)
- List of life peerages (2010–2024)
- List of life peerages (2024–present)
List of law life peerages (created under the Appellate Jurisdiction Act 1876)

All life baronies are in the peerage of the United Kingdom, and rank amongst hereditary baronies in that peerage (and each other) by date of creation.

Hereditary baronies

The hereditary baronies fall into five classes:

List of baronies in the peerage of England
List of lordships of parliament (in the peerage of Scotland)
List of baronies in the peerage of Great Britain
List of baronies in the peerage of Ireland
List of hereditary baronies in the peerage of the United Kingdom

These have precedence in the order named, except that baronies of Ireland created after 1 January 1801 (the date of the Union between Great Britain and Ireland) yield to earlier-created baronies of the United Kingdom.

Hereditary Scottish baronies

In contrast to the English equivalent, the dignity of baron is a non-peerage rank in the Baronage of Scotland, created in the same way as a peerage with crown charter and is protected by the Abolition of Feudal Tenure etc. (Scotland) Act 2000 recognised by the crown as a title of nobility with status of minor baron. Hence the Scottish equivalent of an English baron is Lord of Parliament. The heraldry of Scottish baronies is governed by the court of the Lord Lyon. The Scottish baronage predates the Scottish peerage and they coexist to this day. In fact, up until 1707 union of Scotland and England, the only difference was that peerage titles were personal honours with strict rules of succession, and baronage titles were free baronies attached to land, and freely assignable, with each new baron requiring a confirmation charter from the crown (up until 1874) to ensure loyalty.

List of baronies in the baronage of Scotland

Hereditary feudal baronies

These are distinct from the titles above, created by writ or patent, and were constituents of the now defunct feudal baronage and are not therefore constituents of the modern, post-feudal peerage: