de Saint-Phalle, Edouard, Les comtes de Gatinais aux X et XI siecles, in Settipani and Keats-Rohan, Onomastique et Parente dans l'Occident medieval, Uxford: Unit for Prosopographical Research, Linacre College, 2000. NYPL JFD 03-2300 (advance request needed). Information from this source tagged as [Ref: DeSaintPhalle Gatinais p[0-9]*].