References I330139: David Earl of Huntingdon, of Northumberland, of Carlisle, of Doncaster, of Garioch, of Cambridge, of Lennox

References for David Earl of Huntingdon, of Northumberland, of Carlisle, of Doncaster, of Garioch, of Cambridge, of Lennox

E. Brandenburg: Die Nachkommen Karls des Grossen. Leipzig 1936, Frankfurt 1964
H. Grote: Stammtafeln. Leipzig, 1877
D.Schwennicke: Europäische Stammtafeln, Vol. II, Tafel 90. Marburg, 1984