Weis' "Ancestral Roots" (158A:23): "Domesday tenant 1086 at Cashaltron, Surrey; a leader of the first crusade, elected King of Jerusalem, but took the title Advocate of the Holy Sepulchre (as Godfrey I)". Also Duke of Lower Lorraine. Weis adds a lengthy note summarizing the debate over whether or not he was the father of WILLIAM DE BOULOGNE. He feels the link is established.