 When Maldonato was teaching at the University of Paris the hall was filled with eager students before the lecture began, and he had frequently to speak in the open air.Great as was the merit of the work of Maldonato, it was equalled by the commentary on the Epistles by Estius (born at Gorcum, Holland, 1542), a secular priest, and superior of the College at Douai.These two works are still of the greatest help to the student.