Historic site of Olloniego

The Historic Site of Olloniego sits on the banks of the river Nalón in the municipality of Oviedo/Uviéu, in Asturias, just a few kilometres from the city centre. It is a small but layered corner of the region, where a prehistoric hillfort, a medieval bridge and tower, and a later noble palace all stand within walking distance of one another.

What makes this place significant?

Olloniego sits at the mouth of the Langreo and Mieres valleys, a spot that has served for centuries as a natural passage between inland Spain and the city of Oviedo. That strategic position explains why the settlement mattered so much in the Middle Ages: the bridge over the Nalón, along with the toll collected there, is already documented in 1145, when King Alfonso VII granted the right to collect that toll to the monastery of San Pelayo. Today the whole ensemble — chapels, bridge, tower and palace — is legally protected as a Historic Site (Conjunto Histórico), a status it received on 30 May 1991.

What will you see?

The Muñiz Tower and the Quirós Palace

The core of the ensemble is formed by two noble residences standing close together: the medieval Torre de Muñiz, originally built for defence, and the Palacio de los Quirós, raised as the seat of one of the region's prominent families. Together they trace the shift in Asturian residential architecture, from a plain defensive tower to a more representative palace.

The old bridge over the Nalón

The stone bridge across the river was a key piece of infrastructure as early as the 12th century. It carried the route linking the mining valleys with Oviedo, and the toll collected on it was an important source of income for the nearby monastery.

The chapels

Two small chapels have survived within the site, evidence of the religious life the settlement has maintained over the centuries.

Tudela Castle and the hillfort beneath it

On the hill overlooking Olloniego stand the ruins of Tudela Castle. It was built on much older ground: the site of a former hillfort, El Pico Castiello, confirming that the area was inhabited long before any medieval defensive structure was raised here — the castle was simply added on top of a much older settlement.

How do you get there?

Olloniego lies right next to Oviedo, along the road that follows the Nalón valley toward Mieres and Langreo. Its closeness to the Asturian capital makes it an easy short trip by car, or a pleasant riverside walk if you have more time. The lower part of the site — bridge, chapels, tower and palace — is flat and easy to cover on foot, while the climb up to the Tudela Castle ruins is noticeably steeper.

When should you visit?

The site can be visited year-round, but spring and autumn offer the most comfortable conditions, with mild temperatures and the Nalón valley at its greenest. In summer, an early morning visit is worth planning before the climb to the castle ruins gets hot. In winter the ground can turn damp and slippery, especially on the steeper paths leading up to the hillfort and the castle.

Frequently asked questions

What exactly is the Historic Site of Olloniego? It is a legally protected heritage ensemble in the municipality of Oviedo, made up of a medieval bridge, a defensive tower, a palace, two chapels, and the ruins of Tudela Castle, which was built over an older hillfort.

How far back does settlement at Olloniego go? The earliest traces go back to prehistoric times, confirmed by the El Pico Castiello hillfort, later built over by Tudela Castle. The bridge and its toll are documented from 1145 onward.

Why was the bridge at Olloniego so important? It stood on the route connecting inland Spain with Oviedo, at the entrance to the Langreo and Mieres valleys. The toll collected there mattered enough that King Alfonso VII granted its collection rights to the monastery of San Pelayo.

When did Olloniego become a protected Historic Site? It was declared a Conjunto Histórico (Historic Site) on 30 May 1991.