10 Distinguished men such as Alphonsus of Albuquerque and John de Castro prudently governed the Portuguese colonies. They gave protection and assistance to the good missionaries, whom highly esteemed kings like John II gladly sent to the regions accredited to their rule. Then all the world admired your nation because of its strength and outstanding labors, which humanized barbarous lands. Contrastingly, the Catholic faith languished when the zeal for sacred missions became torpid and died. Also, the governors of the state finally obstructed missionary activities, to say nothing of protecting them, and scattered the orders of religious men, weakening and enervating their undertakings. Thus it is that the flame of missionary work flickered, together with the Christian faith and charity which bore and nourished that same flame.
Source: Saeculo Exeunte Octavo (Vatican.va)