San Isidoro is a historic church located in the heart of Madrid, Spain. Built in the 17th century, it is known for its beautiful Baroque architecture and intricate interior decorations. The church is dedicated to Saint Isidore the Farmer, the patron saint of farmers and laborers, reflecting its agricultural roots. The church is also famous for its connection to the Spanish Civil War, during which it served as a refuge for those seeking shelter. Today, San Isidoro remains an important cultural and religious site, attracting visitors who admire its art and history.