Ancestry of Richard Plantagenet & Cecily de Neville @ chart 1531, K of Navarre, s of Sancho I Garcés King of Navarre
& Toda Aznarez de Larraun
The cited information was published by published by author, 1978 (Ref: chart 1531, K of Navarre, s of Sancho I Garcés King of Navarre
& Toda Aznarez de Larraun) The author/originator was Ernst-Friedrich Kraentzler.