Note 963 — Chapter V · THE ANGEVIN EMPIRE. 1175–1183.
Reading edition
His first attempt to do so was made in 1170, when a pretext was given him by the declaration said—whether truly or falsely—to have been made by the dying archbishop Peter of Bourges, that his see belonged of right to Aquitaine. Nothing, however, came of the attempt. See Gesta Hen. (Stubbs), vol. i. pp. 10, 11.