Events
Date of Birth: unknown.
Date of Death: unknown.
Relationships
Father: Owain ap Maredudd ap Tewdws (died 811).
This relationship is shown by Bartrum (EVWG [20]) and given by Lloyd (1:262).
Mother: unknown.
Spouse: Bleiddig.
This relationship is shown by Bartrum (EVWG [20]) and given by Lloyd (1:262).
Children:
Hyfaidd (died 893).
References
Bartrum, Peter C (ed.) Early Welsh Genealogical Tracts. (Cardiff: University of Wales Press, 1968).
The sources Bartrum gives for Tangwystl are:
Harleian MS. 3859 -- dated to about the 980s:
2. “[O]uein map Elen merc Ioumarc map Himeyt map Tancoyslt merc Ouein map Margetiut map Teudos map Regin map Catgocaun map Cathen map Cloten map Nougoy map Arthur map Petr map Cincar map Guortepir map Aircol map Triphun (map) Clotri map Gloitguin map Nimet map Dimet map Maxim gulecic (map) Protec (map) Protector (map) Ebiud map Eliud (map) Stater (map) Pincr misser map Constans map Constantini et Helen luicdauc que de Britannia exiunt ad crucem Christi querendam usque ad Ierusalem, et inde attulit secum usque ad Constantinopolin, et est ibi usque in hodiernum diem”;
Achau Brenhinoedd a Thywysogion Cymru -- probably compiled in the early 1400s:
18a. “Iwein ap Elen ferch Llywarch ap Hyfeidd ap Tangwystyl ferch Ewein ap Maredudd ap Tewdos [ap Rhain] ap Kadwgon ap Kathen ap Gwlyddian ap Nowy ap Arthur ap Pedyr ap Kyngar ap Gwerthefyr ap Erbin ap Aergul (ap) Llawir ap Tryffin ap Ewein ap Gwledyr ferch Gletwin ap Nyfedd ap Dyved ap Ebynt ap Elynt ap Amloyd ap Amweryd ap Kustennin ap Maxen wledig”.
Bartrum, Peter C.,“[20]” in An Electronic Version of Welsh Genealogies AD 300-1500. [The source Bartrum cites for Tangwystl is his own Early Welsh Genealogical Tracts.]
Guy, Ben. Medieval Welsh Genealogy. (The Boydell Press, 2020).
From Guy’s attempted recreation of the St David’s recension of the Gwynedd collection of genealogies as it might have existed in the tenth century, based on the Harleian genealogies:
2. [O]uein map [H]elen merc [L]oumarc map Himeyt map Tancoys[tl] merc Ouein map Margetiut map Teudos map Regin map Catgocaun map Cathen map Cloten map Nougoy map Arthur map Petr map Cincar map Gourtepir map Aircol map Triphun map Clotri map Gloitguin map Nimet map Dimet map Maxim Gule[t]ic map Protec map Protector map Ebiud map Eliud map Stater map Pincr Misser map Constans map Constantini magni map Constantii et Helen Lui[t]dauc, que de Brittania exuit ad crucem Christi querendam usque ad Ierusalem, et inde attulit secum usque ad Constantinopolin, et est ibi usque in hodiernum diem.
Lloyd, John Edward, A History of Wales. 2 volumes (London: Longmans, Green and Co., 1911-1912).