Ancestry of Richard Plantagenet & Cecily de Neville @ Chart 1841, p 400, Pelag (Immerum in Sumer, Typhon in Greece)
The cited information was published by published by author, 1978 (Ref: Chart 1841, p 400, Pelag (Immerum in Sumer, Typhon in Greece)) The author/originator was Ernst-Friedrich Kraentzler.