The Castle of the Dukes of Alba in Alba de Tormes, Salamanca province, represents one of Spain's most significant noble residences, with origins dating to the 12th century. Originally a simple watchtower built by King Ferdinand II of León, the fortress evolved through Sancho IV's 13th-century modifications and the 1st Duke's Renaissance transformation into a palatial stronghold. The remaining keep, one of six original towers, contains exceptional frescoes depicting the Battle of Mühlberg. This ancestral seat of the House of Alba reflects layers of medieval, Renaissance, and imperial history, remaining private property of Spain's most prominent noble families.
