One other incident of Montalvo's administration must be recalled, to wit, his quarrel with the church, or at least with the Bishop. Diego Sarmiento, who became Bishop in De Soto's time, had been gathered to his fathers, and had been succeeded by Bishop Durango. The latter had in turn died, and in 1560 had been succeeded by Bernardino de Villapando, who spent only three years in the island and then departed for Mexico under unpleasant charges of embezzlement of funds. The charges against him do not appear to have been pressed, nor did they affect his standing in the church, for he was presently transferred to the then much more important see of Guatemala. Moreover, despite the charges made against him, he was recognized as a most energetic and successful prelate. He established many mission stations throughout the island, and expedited the completion of the cathedral at Santiago.
Upon his promotion to Guatemala after three years' service Bishop Villapando was succeeded by Juan de Burgos, who continued with much success the work of his predecessor. He secured the erection of a large church school on the site now occupied by the Hospital of San Juan de Dios, at Havana, and there the famous missionary preachers and teachers, Juan Roger and Francisco Villaroel, gave instruction to Indian youths in the Christian religion and in the Spanish tongue. In connection with this school there was built the church of San Juan de Dios, and from the establishment thus founded by Bishop Burgos grew the first hospital in Havana. It took originally the form of a military hospital, for the soldiers of the Havana garrison and for soldiers in transit to or from Florida, Mexico and other places. It is recorded that for his work Bishop Burgos depended entirely upon the offerings of the people; demonstrating what could be accomplished by an honest and businesslike administrator.
The next Bishop of Cuba was Pedro del Castillo, who came to the island from the University of Salamanca. He was a most aggressive and strenuous prelate, with policies of his own and with the courage to enforce them. Arriving in Cuba in 1570, he glanced at Santiago when he landed there, crossed the island to Havana, where he spent a little time, and then proceeded to Bayamo, where he established his home, preferring that to any other city of Cuba. He then laid claim to the island of Jamaica as a part of his bishopric, and succeeded in carrying that point despite the opposition of the Archbishop at Hispaniola. Then he complained that the royal officials were not properly collecting the tithes, or at any rate were not paying him his proper revenue; wherefore he himself began collecting the tithes. This brought him into conflict with the crown, a circumstance which did not alarm him nor swerve him from his course. He made a number of appointments of the clergy under him which he deemed to be for the good of their parishes but which made him unpopular with them. Also he incurred much unpopularity among the people by his insistence upon certain reforms in their morals.