Grenier, p. 17. Creighton, Louise von Glehn (1876). Life of Edward the Black Prince. Rivingtons. pp. 182–186. R. P. Dunn-Pattison (1910). The Black Prince. London: Methuen & Company, Limited. pp. 272–275.
On 1 November 1031 a synod was also held at Bourges, under the presidency of Archbishop Aymon. Bishop Jordan of Limoges did not attend. Carl Joseph Hefele (1871). Histoire des conciles d'après les documents originaux: 870-1085 (in French). Vol. Tome VI. Paris: Adrien le Clere et Cie, Libraires-Éditeurs. pp. 270–272.
Grenier, p. 17. Creighton, Louise von Glehn (1876). Life of Edward the Black Prince. Rivingtons. pp. 182–186. R. P. Dunn-Pattison (1910). The Black Prince. London: Methuen & Company, Limited. pp. 272–275.
Guillaume had been Prior of Saint-Martial. He was named bishop after the deposition of his predecessor, Bishop Humbald. Hated by the supporters of the deposed bishop, he was poisoned by a certain Martin Le chrétien in the third year of his episcopacy. F. Marvaud (1873). Histoire des Vicomtes et de la Vicomte de Limoges (in French). Vol. Tome premier. Paris: J.-B. Dumoulin. p. 153. Gallia christiana II, pp. 518–520.