Texts B and C omit the second half of the year 93 entry. B calls Arfderydd "Erderit"; C, "Arderit". In the B Text, the year 129 entry continues: "between the sons of Elifer and Guendoleu son of Keidau in which battle Guendoleu fell and Merlin went mad". Both the B and C texts display the influence of Geoffrey of Monmouth's "Historia Regum Britanniae", and this is reflected in the Arfderydd entry by the choice of the Latinized form "Merlinus", first found in Geoffrey's "Historia", as opposed to the expected Old Welsh form "Merdin".