The Basilica of Begoña started life in the 16th century, designed by Sancho Martínez de Arego. It has three naves, to which the addition of vaults was completed in the 17th century in construction work that took a century, having started in 1511. During the time of this work, the Gothic style began to show Renaissance influence, and the arched mid-16th century main entrance reflects the transitional style of the Spanish architect Gil de Hontañón. The remainder of the building remains purely Gothic in style.
During the 19th century, the basilica was damaged as a result of it forming part of Bilbao's city wall. The Carlist General Tomás de Zumalacárregui was fatally injured near the basilica. The current tower and part of the exterior were designed by José María Basterra and built between 1902 and 1907.
On 16 August 1942, an incident between Falangists and Carlists resulted in several grenades exploding near the church. Accounts differ on number of injuries and whether any were killed, but the incident highlighted dangerous rifts between Spanish nationalist factions and prompted a restructuring of Franco's government. A prominent Falangist, Juan José Domínguez, was controversially sentenced to death and executed by firing squad as a punishment for the incident.
Work was carried out to correct the damage, however, and from September 1993 to June 1994, extensive cleaning and restoration work was carried out on the stone and the clock face and bells were repaired. The clock tower houses 24 bells, with the heaviest weighing a tonne, and were built in Sumiswald, Switzerland. The history of the clock tower dates back to 1922, and currently, seven different melodies can be produced.
References:Sigmaringen Castle was first mentioned in the year 1077 in the chronicles of Petershausen monastery. The oldest parts of the castle are concealed beneath the alterations made during the 17th and the 19th centuries. The secret of the earliest settlement built on this defendable rock will never be fully revealed: large-scale excavation work would be necessary, which the extensive land development renders impossible. Judging from the many Roman remains unearthed in the area around Sigmaringen, the 12th century keep known as the 'Roman Tower' could be traced back to a Roman predecessor.
The castle remains that have been preserved (gate, great hall and keep) date back to the Staufer period around 1200. The castle remains were integrated into subsequent buildings. The foundations of the castle buildings are to a large extent identical to the surrounding castle wall.
These remains give us a good idea of how the castle might have looked during the 12th century.