[S25458533593] Complete Peerage, G E Cockayne et al, (St. Catherine Press, 29 Great Queen St, Kingsway, London 1910 on), Stafford art, Vol XII/1, p. 168 seq.
[S25458533641] II: Domesday Descendants, K S B Keats-Rohan, (Boydell Press, 2002), Husband, Robert III de Stafford, p. 717.