Cámara Santa
Pre-Romanesque chapel housing Asturian relics and jewels.
The Cámara Santa, or Holy Chamber, of Oviedo is a pre-Romanesque Roman Catholic church in Oviedo, Spain. It sits beside the pre-Romanesque Tower of San Miguel, part of the city’s cathedral, and fills the corner between the south arm of the cathedral’s transept and one side of the cloister.
Built in the 9th century, it served as a palace chapel for King Alfonso II of Asturias and the church of San Salvador of Oviedo. Beyond its royal function, the chamber was designed to safeguard the cathedral’s jewels and relics—a role it still fulfills more than 1,200 years later. Among these treasures are donations from Kings Alfonso II and Alfonso III, including extraordinary gold artifacts of Asturian Pre-Romanesque style, brought from Toledo after the Visigothic kingdom fell. Because of the quantity and quality of relics kept in the Cámara Santa, the cathedral of Oviedo became known as Sancta Ovetensis. The chamber is one of the few surviving parts of the early medieval complex, alongside the adjacent Tower of San Miguel. It was built as a relic room to hold treasures linked to the Kingdom of Asturias—such as the Cross of the Angels, the Victory Cross, the Agate box, the Arca Santa, and the Sudarium of Oviedo—which were brought from Jerusalem to Africa and, after several moves, finally deposited in Oviedo by Alfonso II. UNESCO declared the chamber a World Heritage Site in December 1998.
**Architecture**
The structure has two stacked aisles with barrel vaults. The lower floor, or crypt, is only 2.30 meters high and is dedicated to St. Leocadia, containing several tombs of martyrs. This crypt is a rectangular chamber with rubble walls and a rough semicircular barrel vault that rises approximately 2.30 meters at its crown. It was originally lit by very narrow windows—mere loopholes, splayed inward—in the side walls, plus one large window at the east end.
The upper Cámara Santa consists of a square eastern sanctuary attached to a rectangular cella. The sanctuary has a low barrel vault, and its frontal arch is carried by two marble columns of Roman origin. A matching pair of columns decorates the east window, which has an arch on the inside but a square head with a rough brick relieving arch on the outside, similar to the east window of the crypt below.
Quick Facts
- Location
- Oviedo (Asturias), Spain
- Religious Affiliation
- Roman Catholic
- Architecture Type
- Church
- Architecture Style
- Pre-Romanesque
- Heritage Designation
- World Heritage Site
- Completed
- 9th century
Facts from the source article.
Lore & Background
The Cámara Santa occupies the angle between the south arm of the cathedral transept and a side of the cloister. It was built during the 9th century as a palace chapel for King Alfonso II of Asturias and the church of San Salvador of Oviedo. Apart from acting as royal chapel, the Holy Chamber was built to house the jewels and relics of the cathedral of San Salvador in Oviedo, a function it continues to have 1200 years later. Some of these jewels were donated by the Kings Alfonso II and Alfonso III, and represent extraordinary gold artifacts of Asturian Pre-Romanesque, brought from Toledo after the fall of the Visigothic kingdom.
The architecture consists of two overlapping aisles with a barrel vault; the crypt or lower floor has a height of 2.30 metres, and is dedicated to St. Leocadia, containing several tombs of other martyrs. The upper chamber is dedicated to St. Michael, though the entire structure is not commonly called the 'chapel of St. Michael'—that name refers specifically to the upper chapel, while the Cámara Santa is the relic chamber below. Along with the adjacent Tower of San Miguel, the Cámara Santa is one of the few surviving parts of the early medieval complex.
Reader's Guide
The Cámara Santa is significant as a rare surviving example of early medieval Asturian architecture and as a repository of relics and treasures central to the Kingdom of Asturias. Its construction in the 9th century as a palace chapel and reliquary reflects the political and religious ambitions of King Alfonso II, who sought to consolidate Christian identity after the fall of the Visigothic kingdom. The jewels donated by Alfonso II and Alfonso III, including gold artifacts brought from Toledo, underscore the continuity of Visigothic craftsmanship within Asturian culture. The chamber's architectural features, such as the Roman marble columns and Corinthian-style capitals, illustrate the fusion of local and classical influences. The Holy Chamber's continued use for over 1200 years as a reliquary, and its UNESCO World Heritage designation in 1998, highlight its enduring cultural and religious importance. The Sudarium of Oviedo, a bloodstained cloth kept in the Arca Santa, adds to the site's mystique, with claimed connections to the Turin Shroud and Manoppello image. As the only surviving component of the early medieval complex, the Cámara Santa provides invaluable insight into Asturian art, architecture, and relic veneration.
Did You Know?
- It houses the Sudarium of Oviedo, a bloodstained cloth claimed to be wrapped around the head of Jesus Christ after his death.
- The crypt of St. Leocadia has a barrel vault barely 80 cm high at the crown.
- The Holy Chamber was declared a World Heritage Site by UNESCO in December 1998.
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