Alconchel Castle is built in the site of Roman, Visigoth and Moorish fortifications. Today oldest parts date from the 12th century, when Alconchel was reoccupied by kings of Portuguese and León. The castle was altered in the late 14th century and 16th century for better protection against gunpowder weapons. Numerous battles between the kingdoms of Spain and Portugal took place here.
References:The first written record of church in Danmark locality date back to the year 1291. Close to the church are several stones with a Christian text and cross inscribed. The oldest parts of the present red-brick church are from the 1300s. In the late 1400s the church was enlarged to the appearance it has today. The church has been modified both internally and externally several times, among other things after the fires in 1699 and 1889. There are lot of well-preserved mural paintings in the walls.