Peter Mangiadore, or Peter Comestor, as he is more generally called, was born at Troyes in France, and became in 1164 Chancellor of the University of Paris. He was the author of a work on Ecclesiastical History, “from the beginning of the world to the times of the Apostles”; and died in the monastery of St. Victor in 1198. He was surnamed Comestor, the Eater, because he was a great devourer of books.

Peter of Spain was the son of a physician of Lisbon, and was the author of a work on Logic. He was Bishop of Braga, afterwards Cardinal and Bishop of Tusculum, and in 1276 became Pope, under the title of John XIX . In the following year he was killed by the fall of a portion of the Papal palace at Viterbo. ↩