The village of Segura was built current location in the 13th century, by order of Alfonso X, King of Castile, following a strategic defense plan.
At the time, Guipúzcoa went from belonging to the Kingdom of Navarre to becoming part of Castile. These were conflicting times and the village had the function of protecting the Camino Real of San Adrian, by being a border village. This road, crossed Guipúzcoa from south to north, towards the coast and Segura became one of the most important commercial towns in the 15th and 16th century.
Segura was declared Joint Artistic Historical Monument since 1996, with its almond-shaped; maintains the medieval charm by its civil and religious architecture.