Ancestry of Richard Plantagenet & Cecily de Neville @ Chart 1825, p 392, Cynvelin (Cunobelinus, Kymbeline)
The cited information was published by published by author, 1978 (Ref: Chart 1825, p 392, Cynvelin (Cunobelinus, Kymbeline)) The author/originator was Ernst-Friedrich Kraentzler.