Final answer:
Islam has historical ties to kingdoms in Spain and the former Ottoman Empire in Southeastern Europe. Most of its practitioners in Europe today are immigrants.
Step-by-step explanation:
The religion that has historical ties to kingdoms in Spain and the former Ottoman Empire in Southeastern Europe is Islam. While most of those who practice Islam in Europe today have immigrated there from other countries, it is important to note that Islam spread rapidly across North Africa, east across southern Asia, and north to Europe in the centuries after Muhammad's death. Islam is the youngest of the three major monotheistic religions, tracing its origins back to the patriarch Abraham.