The derbfine ( ; , from 'real' + 'group of persons of the same family or kindred', thus literally 'true kin'electronic Dictionary of the Irish Language s.v
derbḟine
/ref>) was a term for patrilineal groups and power structures defined in the first written tracts in

early Irish law Early Irish law, also called Brehon law (from the old Irish word breithim meaning judge), comprised the statutes which governed everyday life in Early Medieval Ireland. They were partially eclipsed by the Norman invasion of 1169, but underwe ...

. Its principal purpose was as an institution of property inheritance, with property redistributed on the death of a member to those remaining members of the derbfine. Comprising all the patrilineal descendants over a four-generation group with a common great-grandfather, it gradually gave way to a smaller three-generation kinship group, called the . Within a

clan A clan is a group of people united by actual or perceived kinship and descent. Even if lineage details are unknown, a clan may claim descent from a founding member or apical ancestor who serves as a symbol of the clan's unity. Many societie ...

, on the death of its chief or king, the surviving members of its derbfine would elect from their number a new chief and/or elect his successor, or ''

Tánaiste The Tánaiste ( , ) is the second-ranking member of the government of Ireland and the holder of its second-most senior office. It is the equivalent of the deputy prime minister in other parliamentary systems. The Tánaiste is appointed by the P ...

'' (in English, his

Tanist Tanistry is a Gaelic system for passing on titles and lands. In this system the Tanist (; ; ) is the office of heir-apparent, or second-in-command, among the (royal) Gaelic patrilineal dynasties of Ireland, Scotland and Mann, to succeed to ...

). A larger number of clan members, either allies or cousins who were too distantly related to be members of the derbfine, would not have a direct say in such an election. The frequent recitations of a clan's

genealogy Genealogy () is the study of families, family history, and the tracing of their lineages. Genealogists use oral interviews, historical records, genetic analysis, and other records to obtain information about a family and to demonstrate kin ...

by its

bard In Celtic cultures, a bard is an oral repository and professional story teller, verse-maker, music composer, oral historian and genealogist, employed by a patron (such as a monarch or chieftain) to commemorate one or more of the patron's a ...

s was therefore a reminder of who was currently in or out of the clan's derbfine as much as it was a claim to ancient lineages. Professor

Francis John Byrne Francis John Byrne (1934 – 30 December 2017) was an Irish historian. Born in Shanghai where his father, a Dundalk man, captained a ship on the Yellow River, Byrne was evacuated with his mother to Australia on the outbreak of World War II. A ...

University College Dublin University College Dublin (), commonly referred to as UCD, is a public research university in Dublin, Ireland, and a collegiate university, member institution of the National University of Ireland. With 38,417 students, it is Ireland's largest ...

also identified an system used in some clans before the year 1000, with membership going back to a common great-great-great-grandfather, perhaps necessary at a time of frequent warfare. In the European context, membership of a derbfine was similar to holding the rank of '' prince du sang'' in France.

Comparative systems

In later Anglo-Saxon England, princes of the royal dynasty who were eligible for the kingship were known as

ætheling Ætheling (; also spelt aetheling, atheling or etheling) was an Old English term (''æþeling'') used in Anglo-Saxon England to designate princes of the royal dynasty who were eligible for the kingship. The term is an Old English and Old Saxon ...

s. In Wales, an '' edling'' was the term for an accepted

heir apparent An heir apparent is a person who is first in the order of succession and cannot be displaced from inheriting by the birth of another person. A person who is first in the current order of succession but could be displaced by the birth of a more e ...

of a reigning Welsh monarch. The inheritance of the Norman royal line on the death of

Stephen, King of England Stephen (1092 or 1096 – 25 October 1154), often referred to as Stephen of Blois, was King of England from 22 December 1135 to his death in 1154. He was Count of Boulogne ''jure uxoris'' from 1125 until 1147 and Duke of Normandy from 1135 ...

and his succession by his cousin,

Henry II Henry II may refer to: Kings * Saint Henry II, Holy Roman Emperor (972–1024), crowned King of Germany in 1002, of Italy in 1004 and Emperor in 1014 *Henry II of England (1133–89), reigned from 1154 *Henry II of Jerusalem and Cyprus (1271–1 ...

, is similar. Stephen's son was disinherited by consent, and Henry was chosen as the equivalent of

tánaiste The Tánaiste ( , ) is the second-ranking member of the government of Ireland and the holder of its second-most senior office. It is the equivalent of the deputy prime minister in other parliamentary systems. The Tánaiste is appointed by the P ...

or next chieftain and succeeded to the English throne in 1154. The system was again attempted during the incapacity of

Henry VI of England Henry VI (6 December 1421 – 21 May 1471) was King of England from 1422 to 1461 and 1470 to 1471, and English claims to the French throne, disputed King of France from 1422 to 1453. The only child of Henry V of England, Henry V, he succeeded ...

, when the

House of York The House of York was a cadet branch of the English royal House of Plantagenet. Three of its members became kings of England in the late 15th century. The House of York descended in the male line from Edmund of Langley, 1st Duke of York ...

obtained the support of some royal cousins to take the throne in 1461. By then, the norm in Europe was the system of

primogeniture Primogeniture () is the right, by law or custom, of the firstborn Legitimacy (family law), legitimate child to inheritance, inherit all or most of their parent's estate (law), estate in preference to shared inheritance among all or some childre ...

, which led on to the turbulent succession crises and policies of

Henry VIII of England Henry VIII (28 June 149128 January 1547) was King of England from 22 April 1509 until his death in 1547. Henry is known for his Wives of Henry VIII, six marriages and his efforts to have his first marriage (to Catherine of Aragon) annulled. ...

in 1527–36.

References

*Marie Therese Flanagan, ''Irish Society, Anglo Norman Settlers, Angevin Kingship'' (OUP 1998) *FJ Byrne, ''Irish Kings and High-Kings'' (various reprints)

References

Medieval history of Ireland Anthropology Inheritance Law of Ireland {{Ireland-law-stub

Comparative systems

See also

References

References