These are not facts Portuguese, rather Catholic history fed to prevent the populace from abandoning the church. The so-called Reconquista were southern crusades with armed thugs brought from all over Europe, but especially zealots from Germany and France with promise of land and booty and to kill in the name of the church and Christ.
Other crusades included the northern crusades against the Baltic people where millions were put to the sword or forcibly converted to the Church. The atrocities of more familiar Eastern crusades against Byzantium, the Jews and Palestine/ Syria are well known and need not be recalled here, except yo say of the heavy participation of Germans, Franks, British, Hungarians and other barbarian tribes. This went on in to with the establishment of the Portuguese maritime empire funded from looted Americas wealth.Besides atrocities in Angola the Portuguese warships regularly sank ships full of pilgrims traveling from Mughal India for Hajj.
Christian habit of justifying a long history of European atrocities and barbaric behavior, be it the Russian Soviets or Crusaders is now known. Wonder what you think of King Leopold in the Congo, the French in North Africa, the British in Mughal India, Australia and East Africa and the British and Dutch in South Africa? The US in the Philippines, Indo-China, Hawaii, the extermination of Native peoples and the invasion of Iraq?