About Gwirachau
One central, online home for all Welsh genealogies, set out clearly and simply.
- Gwirtrue
- Achaugenealogies
One record everyone can trust
Gwirachau is built to be a central online collection of all Welsh genealogies, presented clearly and concisely.
On other sites, everyone keeps their own tree, and any of them may contain mistakes. Gwirachau is about unity, consensus and open information.
One person, one record.
One family, one truth.
One Wales, one heritage.
The Gwirachau difference
Source integrity and no duplicates
Every person exists once, with all their information brought together and checked by the community.
How it works →Consensus-driven
Researchers work together to get records right, through discussion, evidence and peer review.
How voting works →Open information
All the family-history data is free for researchers and descendants. Welsh heritage belongs to all Welsh people.
Welsh heritage
Only Welsh genealogy: the tribes, and the cultural and family ties that connect Welsh people.
Backed by sources
Every claim rests on historical sources: parish registers, census returns and other documents.
Tribal legacy
Keeping the old Welsh tribes (llwythau) and the father-to-son lines that shaped Welsh society for centuries.
Why one shared record
The usual problem
Most family-history sites are full of duplicates, conflicting details and separate trees that never join up with the wider Welsh story. Researchers lose hours reconciling different versions of the same family.
A different approach
We think Welsh genealogy should be a shared effort: researchers working together on one trusted, source-backed record for each person who ever lived in Wales.
Every entry is shared work
When details clash, the community talks through the evidence, checks the sources and agrees. So the next researcher can trust what they find.
Kept for good
From the old tribal patriarchs to Welsh families today, every connection is kept and every story told with accuracy and respect.
Join the Gwirachau community
Help build the definitive record of Welsh genealogy. Professional researcher, family historian or just curious about your Welsh roots: what you add matters.