{{Short description|Ruler of the Brittonic kingdom of Alt Clut}} {{Use dmy dates|date=April 2022}} '''Dyfnwal Hen''' or '''Dumnagual Hen''' ("Dyfnwal the Old") was a ruler of the Brittonic kingdom of Alt Clut, later known as Strathclyde, probably sometime in the early 6th century. His biography is vague, but he was regarded as an important ancestor figure for several kingly lines in the ''Hen Ogledd'' or "Old North" of Britain. As an ancestor figure, he compares to Coel Hen, another obscure figure credited with founding a number of northern dynasties.

According to the Harleian genealogies, Dyfnwal was the son of a Cinuit, the son of Ceretic Guletic, probably his predecessors as king.<ref>[http://www.kmatthews.org.uk/history/harleian_genealogies/5.html Harleian genealogy 5]</ref> The Harleian genealogies name three of his sons, each of whom formed a kingly line: Clinoch, Dyfnwal's successor as king of Alt Clut; Guipno, who fathered the later king Neithon; and Cynfelyn, a king of Eidyn or Edinburgh.<ref name=MacQuarrie5>MacQuarrie, p. 5.</ref> The ''Bonedd Gwŷr y Gogledd'', a later genealogy of northern kings, gives a modified version of Dyfnwal's family tree.<ref name=Bromwich>Bromwich, pp. 256–257.</ref> Here, he is the son of Idnyued and the grandson of Maxen Wledig, better known as the Roman usurper Magnus Maximus. The ''Bonedd'' follows the Harleian in making Dyfnwal the great-grandfather of Rhydderch Hael, a later king of Alt Clut, but his other descendants are altered significantly.<ref name=MacQuarrie5/> A Gwyddno is included, but he listed as Dyfnwal's great-grandson rather than son, and he is specifically identified as Gwyddno Garanhir of the Taliesin legend.<ref name=Bromwich/> A highly confused track makes Dyfnwal the ancestor to the family of Áedán mac Gabráin, a 6th-century ruler of the Gaelic kingdom of Dál Riata.<ref name=Bromwich/>

==Notes== {{reflist}}

==References== *{{cite book |title=Trioedd Ynys Prydein: The Triads of the Island of Britain |last=Bromwich| first=Rachel |author-link=Rachel Bromwich |year= 2006 |publisher=University of Wales Press |isbn=0-7083-1386-8}} * {{cite journal |author1=MacQuarrie, Alan|author2= A. Grant & K. Stringer (editors)|year= 1993 |title= The Kings of Strathclyde|journal= Medieval Scotland: Crown, Lordship and Community |publisher=Edinburgh University Press|pages= 1–19 }}

{{start box}}{{s-reg}} {{succession box | before=Cinuit?| title=King of Alt Clut | years=early-6th century?| after=Clinoch}} {{end box}} {{Kings of Alt Clut}}

{{DEFAULTSORT:Dumnagual 01 Of Alt Clut}} Category:6th-century Scottish monarchs Category:Monarchs of Strathclyde