Ancestry of Richard Plantagenet & Cecily de Neville @ chart 1239, Johanna von Genf (Geneva), d of Gerald "Princeps
Regionis Civitatis Genvensis"., no mother
The cited information was published by published by author, 1978 (Ref: chart 1239, Johanna von Genf (Geneva), d of Gerald "Princeps
Regionis Civitatis Genvensis"., no mother) The author/originator was Ernst-Friedrich Kraentzler.