Medieval Welsh Genealogy
Tracing the lineages of early Wales, from mythic origins to medieval kingdoms.
The Age of Tribes and Kingdoms
Welsh genealogy before 1485 centers on noble families, tribal confederations, and legendary ancestors. This era includes both mythological genealogies and documented royal lineages stretching back to figures like Coel Hen and Cunedda.
In Wales, memory is sacred. Every name holds a story, every line a kingdom.
What You'll Find
Royal Lineages
Explore the dynasties of Gwynedd, Powys, Deheubarth, and other medieval kingdoms — including lines descended from Cadwaladr, Hywel Dda, and Rhodri Mawr.
Warrior Lords
Track the noble families who held castles and defended their territories, including Marcher Lords and military leaders during English invasions.
Genealogical Manuscripts
References from medieval texts such as Bonedd y Saint, Harleian MS 3859, and Jesus College MS 20 form the foundation of our reconstructions.
Legend & Lore
Some genealogies blend myth and fact — from the Mabinogion to oral traditions passed through bardic schools. These are marked and contextualized for historical clarity.
Medieval Genealogy in Context
Medieval Welsh genealogy isn't always linear or provable. Some family lines were recorded centuries after the events. Others changed due to shifting political alliances, conquest, or clerical error.
Gwirachau treats all genealogies with care — clearly labeling source quality, known interpolations, and contested lines. This transparency helps modern researchers separate legend from lineage.
Help Clarify the Medieval Past
Are you familiar with early Welsh genealogical texts? Join us in reviewing medieval pedigrees, clarifying family lines, and identifying misattributions in historical records.
Contribute to Medieval Records