Analysis of information sources in references of the Wikipedia article "Boso of Provence" in English language version.
His mother's father, Boso, provided a daughter, Tetburgis/Teutberga, Boso's aunt, to be wife of Lothair II.
His mother's father, Boso, provided a daughter, Tetburgis/Teutberga, Boso's aunt, to be wife of Lothair II.
His mother's father, Boso, provided a daughter, Tetburgis/Teutberga, Boso's aunt, to be wife of Lothair II.