This is for those who love to see life in black and white (B/w) ;)
“ ... Chroniclers of the period report that the plague had spread from Italy to Spain and northward to France. By 1350, the plague was in Scandinavia. In more densely populated areas or cities such as Paris, Oxford and London almost 66% of the population was killed. Other, more isolated regions such as Bohemia were virtually unscathed since traders rarely ventured into them.
Medieval Europe responded with many reactions. A few people decided that since life was short, indulging in pleasures while you could was the order of the day. Others saw the plague as the Christian God's punishment for sin. The power of the Catholic Church increased in the face of imminent death. Some Christians believed that self-desecration would make up for past sins. One movement, the Flagellants believed that whipping themselves and others would atone for sins. Besides self-abuse, they scapegoat others, specifically the Jews. This led to mass persecutions. Of course, none of these actions altered the course of the epidemics of the plague.
The result of the introduction of the bubonic plague into Europe was devastating. There were too few people to work the land, estates lost financial power that, in turn, provided an opportunity for kings to centralize power. Teachers and tutors in universities died and, with them, learning. Hence the term Dark Ages...”
Source:
https://c.aarc.org/resources/biological/history.asp