The case of the Augustinian Fray Diego Caballero, in 1716, indicates how non-fulfilment of penance might convert into formal heresy that which was mere suspicion. For uttering unacceptable propositions, he had been sentenced by the tribunal of Córdova to reclusion for four years in the convent of Guadix. He fled from there and continued to repeat his erroneous utterances, for which the Toledo tribunal pronounced him to be relapsed in grave crime and sentenced him to abjure _de vehementi_, to be suspended from his orders for a year, to perpetual deprivation of preaching, confessing and the right to vote and be voted for, to ten years' exile from a number of places, to four years' reclusion in a designated house, where for six months he was to be confined in a cell. He was also to wear a sanbenito, while his sentence was read in the audience-chamber, and the next day it was to be read to the assembled brethren of his Toledo convent, who were to administer to him a circular discipline, and he was to forfeit half his peculium--and all this under pain of being held as an impenitent relapsed.[279] What is noteworthy here is not only the severity of this long accumulation of penalties, but also the abjuration _de vehementi_ which rendered reincidence in the abjured errors a matter for the stake. * * * * * In the medieval Inquisition it may be said that acquittal was virtually prohibited--a sentence of not proven might possibly be rendered, but acquittal was an admission of fallibility and was regarded as a bar to subsequent proceedings in case further evidence was obtained.[280] This principle was maintained in the Roman Inquisition, although, in the eighteenth century, exception was made in cases where the adverse evidence was clearly proved to be fraudulent.[281] The Spanish Holy Office was not quite so sensitive, and had no hesitation as to repeated prosecutions, so that to it acquittal was a less serious matter. Moreover, while sentences of not proven were not unknown, there was an equivalent device by which the accused could be dismissed without admitting his innocence--suspending the case and discharging him, subject to the liability of its being reopened at any time.