The answer is reserved powers
Hello!
The map shows that Empires were not necessarily one continuous territory.
Charles I of Spain (V of the Holy Roman Empire) was the greatest of all Spanish Kings, he had an Empire so big that people said that it was an "empire on which the Sun never sets". His Empire was composed of regions of Spain, Germany, and the Americas. Although those territories were not continuous, they were considered part of the same Empire.
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Muslims and Christians both believe in a monotheistic religion. (please can i have brainliest)