There is a pilgrim mass and benediction every day at 18:00. Hornillos is one of the best examples of a “Royal” camino road: in this case one long street (the aptly named calle real) stretched out along the camino. This layout allowed every building to face the camino, a trait which reminds us that the current heavy development along the camino is anything but a new phenomenon. The town once belonged to the monastery of St. Denis and was home to a Benedictine community.
Folklore places Charlemagne here too, baking bread for his troops along the river.
Ruins and medieval bridges are the only visible remains.