The Emirate of Granada, the last Muslim Kingdom in Europe; In Berengar's past life, fell to the Spanish in 1492; with the fall of Granada and having gained access to the Strait of Gibraltar, the Spanish hired explorers to set sail for parts unknown.
The results of this were the fact that a man named Christopher Columbus rediscovered the Americas after such knowledge was lost following Leif Erikson's expedition to Vinland. This discovery resulted in the expansion of European power and plenty of previously unknown resources finding their way into Europe.
However, in this timeline, the year is currently 1419, and the Emirate of Granda is still standing. Compared to its Catholic neighbors, it has been dramatically weakened from centuries of warfare. Despite this, things were about to change for the tiny Muslim Kingdom on the southern edge of Iberia.