Black Death in Spain
The Black Death was present in Spain between 1348 and 1350. In the 14th century, present-day Spain was composed of the crowns of Aragon and Castile, the Kingdom of Navarre, and the Emirate of Granada. In the countries on the Iberian Peninsula, the Black Death is well-documented and researched in Navarre and particularly in Aragon, but less documented in Castile and Granada.
In the Iberian Peninsula, the Black Death is estimated to have killed 60–65% of the population, reducing its total population from 6 million to 2–2.5 million. In absolute terms, Europe's 80 million inhabitants were reduced to 30 million between 1347–1353.
Aragon
The Black Death in Aragon is described by contemporary witnesses, such as in the chronicle of Peter IV of Aragon, and has been subjected to thorough research which has demonstrated the effect that the plague could have on a society.The Black Death reached Aragon in the spring of 1348, and lasted a year. It interrupted the civil war which took place at the time, when the King was able to convince the rebels by whom he was captive to release him as they would otherwise endanger his life because of the migration of the plague.
The collapse of the administration and social order lasted for several years and resulted a breakdown of law and order, widespread criminality, repression from the nobility and rebellions during the following century.