Ancestry of Richard Plantagenet & Cecily de Neville @ chart 1196, s of Ordoño III de León & Urraca Fernánda de Castile
The cited information was published by published by author, 1978 (Ref: chart 1196, s of Ordoño III de León & Urraca Fernánda de Castile) The author/originator was Ernst-Friedrich Kraentzler.