{Another source posits ancestry: Hughues III is son of Hugues I, Ct. of Alsace, and wife Hildegarde de Ferrette; Hughues I is son of Eberhard III, Count of Nordgau, and wife Adelaide de Vermandois; Eberhard III is son of Eberhard II.}

References: [RFC],[PlantagenetA],[ES],[MRL]