Note 310 — Chapter II · - THE BEGINNINGS OF THE INQUISITION
Reading edition
Historia Diplomatica Friderici Secundi, Huillard-Bréholles (Paris, 1852-61), vol. ii, pt. i, pp. 4-6; Monumenta Germaniae historica, G. A. Pertz (Hanover and Berlin), vol. iv, pp. 242-5; Frédéricq, Corpus, vol. i, pp. 70-1, No. 71.