This individual, described as "one of the most significant queens regnant of the entire Renaissance era," helped unify Spain in the 15th century:

A) Queen Isabella of Castile
B) Queen Elizabeth I
C) Queen Mary
D) Queen Victoria
E) Catherine of Aragon



Answer :

Final answer:

Queen Isabella of Castille played a crucial role in unifying Spain during the Renaissance era.


Explanation:

Queen Isabella of Castille helped unify Spain in the 15th century, making her one of the most significant queens regnant of the Renaissance era. She, along with her husband King Ferdinand of Aragon, completed the Reconquista by driving out the Muslims from Granada, marking a pivotal moment in Spanish history.


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