Decimating the population, leaving the survivors wealthier
Explanation:
The Black Death was an event during the middle of the 14th century. Black Death killed around 50% of Europe and it left the survivors wealthier. Since 50% of the population was gone that meant that most of the wealth was now redistributed and art was accessible by more people. That meant that since people could buy a lot more art that contributed to the growth of the supply of art.
