what is the capital of spain?

The capital of Spain is Madrid. It is the largest city in Spain and serves as the political, economic, and cultural center of the country. Madrid became the capital in 1561 when King Philip II moved the royal court there. It is located in the center of the Iberian Peninsula and has a population of nearly 3.5 million people. The city also hosts the official residences of the King and the President of the Government, as well as the main government institutions of Spain. Madrid is known for its rich history, important landmarks, and vibrant cultural life. Thus, Madrid is the capital of Spain.