Bouchard, Constance Brittain (Spring 1988). The Bosonids or Rising to Power in t...

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Bouchard, Constance Brittain (Spring 1988). The Bosonids or Rising to Power in the Late Carolingian Age. French Historical Studies 15 (3 ed.). Society for French Historical Studies. pp. 407–431. His mother's father, Boso, provided a daughter, Tetburgis/Teutberga, Boso's aunt, to be wife of Lothair II. Cited by Wikipedia, Ermengard of Italy. https://en.wikipedia.org/wiki/Ermengard_of_Italy. Accessed Jan 15, 2016.

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