Dr. Constantine, an intimate acquaintance of the already mentioned Dr. Aegidio, was a man of uncommon natural abilities and profound learning; exclusive of several modern tongues, he was acquainted with the Latin, Greek, and Hebrew languages, and perfectly well knew not only the sciences called abstruse, but those arts which come under the denomination of polite literature.

His eloquence rendered him pleasing, and the soundness of his doctrines a profitable preacher; and he was so popular that he never preached but to a crowded audience. He had many opportunities of rising in the Church, but never would take advantage of them; for if a living of greater value than his own was offered him, he would refuse it, saying, "I am content with what I have"; and he frequently preached so forcibly against simony, that many of his superiors, who were not so delicate upon the subject, took umbrage at his doctrines upon that head.

Having been fully confirmed in Protestantism by Dr. Aegidio, he preached boldly such doctrines only as were agreeable to Gospel purity, and uncontaminated by the errors which had at various times crept into the Romish Church. For these reasons he had many enemies among the Roman Catholics, and some of them were fully determined on his destruction.

A worthy gentleman named Scobaria, having erected a school for divinity lectures, appointed Dr. Constantine to be reader therein. He immediately undertook the task, and read lectures, by portions, on the Proverbs, Ecclesiastes, and Canticles; and was beginning to expound the Book of Job, when he was seized by the inquisitors.

Being brought to examination, he answered with such precaution that they could not find any explicit charge against him, but remained doubtful in what manner to proceed, when the following circumstances occurred to determine them.

Dr. Constantine had deposited with a woman named Isabella Martin, several books, which to him were very valuable, but which he knew, in the eyes of the Inquisition, were exceptionable.

This woman having been informed against as a Protestant, was apprehended, and, after a small process, her goods were ordered to be confiscated. Previous, however, to the officers coming to her house, the woman's son had removed away several chests full of the most valuable articles; among these were Dr. Constantine's books.

A treacherous servant gave intelligence of this to the inquisitors, and an officer was despatched to the son to demand the chests. The son, supposing the officer only came for Constantine's books, said, "I know what you come for, and I will fetch them to you immediately." He then fetched Dr. Constantine's books and papers, when the officer was greatly surprised to find what he did not look for. He, however, told the young man that he was glad these books and papers were produced, but nevertheless he must fulfill the end of his commission, which was to carry him and the goods he had embezzled before the inquisitors, which he did accordingly; for the young man knew it would be in vain to expostulate, or resist, and therefore quietly submitted to his fate.

The inquisitors being thus possessed of Constantine's books and writings, now found matter sufficient to form charges against him. When he was brought to a re-examination, they presented one of his papers, and asked him if he knew the handwriting? Perceiving it was his own, he guessed the whole matter, confessed the writing, and justified the doctrine it contained: saying, "In that, and all my other writings, I have never departed from the truth of the Gospel, but have always kept in view the pure precepts of Christ, as He delivered them to mankind."

After being detained upwards of two years in prison, Dr. Constantine was seized with a bloody flux, which put an end to his miseries in this world. The process, however, was carried on against his body, which, at the ensuing auto da fe, was publicly burnt.