Disambiguation evidence for Rhiwallon ap Cynfyn via surface form

"Rhiwallon ap Cynfyn"

Triples (1)

Triples where some other subject referred to this entity as "Rhiwallon ap Cynfyn".

Gruffudd ap Llywelyn → succeededBy →
"Rhiwallon ap Cynfyn"
↳ resolves to Rhiwallon ap Cynfyn
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