The Historia pontificum et comitum Engolismensium ("History of the Bishops and Counts of Angoulême") is an anonymous genealogical history of the Taillefer dynasty of the Counts and Bishops of Angoulême written around 1160. It presents its subject family as a lineage, concentrating on agnatic descent from its founder, William (Guillaume) Taillefer. It records the legend that Taillefer died defending his lands from the Normans with a magic sword. For events before 1030 it depends heavily on Adhemar of Chabannes, but thereafter is an independent source. It provides a precise record of the "succession of counts and bishops, of their genealogy, their fights and their alliances".