Charles V was born in 1500 and became king of Spain after the death of Ferdinand II of Aragon, and was elected Holy Roman Emperor in 1519. He was not from Spain, but from the “low countries” which correspond to the modern Netherlands. He could not speak Spanish when he arrived in Spain, which would have caused many problems had not the Cortes (provincial assemblies) forced Charles to learn Spanish as a condition for becoming king. The Spanish people were reluctant to have Charles as their king because he was a foreigner. Some saw his mother, Joanna of Castile, as the legitimate ruler. Charles brought with him from the low countries several of his own officials, who were contemptuous of the Spanish. The Spanish people were also taxed heavily to support various wars, and eventually rebellion broke out, called the Rebellion of the Cumuneros, while Charles was being crowned Holy Roman Emperor in 1520. The rebellion was finally suppressed when the nobility perceived that the conflict may progress into a class-war against all aristocracy, and joined in. When Charles returned, the rebellion had been mostly halted, and Charles then had the ability to govern his territories in Spain with more absolute power.