As early as Isabella and Fernando, these two Catholic monarchs not only recovered the territory occupied by the Moors, but also presided over the voyage discovery and finally discovered the new continent, which laid the foundation for the establishment of the Spanish world empire. The Spanish royal family in this period claimed to be the descendants of the Visigoth kingdom, which can be regarded as the local royal family.

It's a pity that their children have lost weight. Isabella and Fernando's Crown Prince died shortly after they married the Habsburg princess. At that time, they experienced a long period of chaos. Finally, because their daughter Princess Juana married a handsome Habsburg man, she gave birth to Carlos. After Isabella's death, Fernando was a regent for a long time, and finally the throne passed to Juana's son, the future Charles V, also known as Carlos I in Spain. The Habsburg family formally established its dominance in Spain.

The Charles V period was also the heyday of the development of the Spanish Empire. He ruled an unprecedented empire, whose territory included: Spain and its overseas colonies Florida, Cuba, Mexico, Peru, Chile and Colombia; Spain's Mediterranean dependency Naples, Sicily, Sardinia and other places; Austria and its affiliated Netherlands (including today's Netherlands and Belgium) are called "not falling empire". Therefore, the prosperity of politics and economy also made Charlie a great English master in Spanish history, and later historians always showed admiration when describing this period. Political achievements promoted the development of the city, so many buildings were built during that period.

However, the Spanish branch of the Habsburg family also encountered difficulties encountered by the early royal family. Not only were the children thin, but many descendants of the royal family were weak and eventually died after four generations. It was at this time that the Bourbon royal family entered Spain. However, the treatment at that time was completely different from that of the Habsburg family. First, it experienced a time-consuming and labor-intensive war of succession to the Spanish throne, and then it continued to encounter domestic rebellion. It can be said that the feud between the Spanish and the French did not disappear because of the Bourbon takeover.