User blog comment:Viliusr/Adam and Eve to William Mountbatten-Windsor?/@comment-2763-20131023114952/@comment-26012372-20131023121005

There is atleast one documentary source. I used Wikipedia, example Kenneth's father: https://en.wikipedia.org/wiki/Alp%C3%ADn_mac_Echdach (which also tells about Alpin's father - Achay and so on.. ) I copied everything from Wikipedia.