The history of the Spanish nobility dates back to the early Middle Ages, when feudalism emerged in the Iberian Peninsula. Nobles were granted land and power in exchange for military service to the king. Over time, noble families gained significant influence, often intermarrying with royalty and other noble houses across Europe. During the Reconquista, which ended in 1492, the nobility played a crucial role in reclaiming territory from the Moors. The Spanish Empire expanded in the 16th century, further elevating the status of the nobility. However, their power declined in the 19th century due to political changes and the rise of a more centralized government.