Schwennicke, Detlev, ed., Europaische Stammtafeln: Stammtafeln zur Geschichte der europaischen Staaten, New Series. III.1 (#1-#200): Herzogs und Grafenhauser des Heiligen Romischen Reiches Andere Europaische Furstenhauser. Marburg: Verlag von J. A. Stargardt, 1984. Information from this source tagged as [Ref: ES III.1 #[0-9]*].
Taylor, Nat, Sancha: viscounts of Narbonne. Posting to soc.genealogy.medieval (email list GEN-MEDIEVAL) on 10/13/1995. Subject: Sancha: viscounts of Narbonne. Apparently not archived by Google Groups. Author address: ntaylor at FAS dot HARVARD dot EDU. Information from this source tagged as [Ref: Nat Taylor SGM 10/13/1995].
Sources for birth and parent Information
parents:
[Ref: Nat Taylor SGM 10/13/1995]
Sources with Information about marriage to Marguerite De Montmorency De Marley
child:
[Ref: ES III.1 #146]
Research Notes:
Vicount of Narbonne [Ref: ES III.1 #146]