Under the reign of charles i, spain entered its "golden age" in what century was he king of spain?
15th century (1400-1500)
16th century (1500-1600)
17th century (1600-1700)
18th century (1700-1800)

The correct answer is 17th century (1600-1700). That century is considered as the Golden Age of Spain. It is under the regime of Charles I. It is around at this age that the country flourished its arts and literature coinciding with the political rise and decline of Spanish Hadsburg dynasty.