Note 19 — Chapter I · LANGUEDOC.
Reading edition
Bern. Guidon. Vit. Gregor. PP. IX. (Muratori, S. R I. III. 573)--Archives Nat. de France J. 430, No. 17, 18.--Guill. Pod. Laur. c. 42.--Peyrat, Hist. des Albigeois, I. 287.--Harduin. Concil. VII. 203-8.--D’Achery Spicileg. III. 606.--Potthast No. 9771.--Epistt. Sæculi XIII. T. I. No. 577 (Mon. Germ. Hist.).--Matt. Paris ann. 1334, p. 280.--Vaissette, III. 399-400, 406.--Hist. Diplom. Frid. II. T. IV. pp. 485, 799-802.