Against Leo's leonine teeth Luther burned the condemning bull and appealed to Charles V
Pope Leo answered Luther's several most humble apologies and protests (Jena Latin Tom. I, fol. 69 end; fol. 192 and 210 end; finally fol. 435) with still harsher injustice and with teeth worthy of his name.
When that leonine message came, Luther burned the condemning Bull and lodged his appeal with Emperor Charles V (Wittenberg Latin Tom. II, fol. 44–45).
Latin
etiam Papae Leoni, sibi post plures, licèt humillimas factas deprecationes & protestationes (Tomo. I. Jen. Lat. fol. 69. in fine, & fol. 192. 210. in fine, fol. denique 435. legendas,) iniquiori ac leoninis prorsùs dentibus infestanti, tandem nunciùm mittente, combustâ Papali Bullâ condemnatoriâ, factâque ad Caesarem Carolum V. provocatione, Tom. II. Wittenb. Lat. fol. 44. & 45.