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Este texto corresponde a los trabajos realizados en Bóveda desde tres puntos de vista: el análisis de su arquitectura, el análisis de su decoración y la búsqueda de unos métodos de datación absoluta; y pretende ser una reflexión sobre los resultados obtenidos, una apuesta de futuro y un llamamiento sobre la necesidad de trabajar de forma conjunta entre profesionales de distintos campos disciplinares.Palabras Clave: arquitectura tardorromana; arquitectura altomedieval; abovedamiento; pintura mural; decoración arquitectónica; luminiscencia; datación absoluta. AbstractThe monumental complex of Santa Eulalia de Bóveda (Lugo, Galicia) is one of the most emblematic, but also most problematic, architectural works of the building heritage of Lugo. Since it was discovered in 1926, many researchers have analysed this building from an architectonical, archaeological, artistic and even symbolic point of view, providing several different interpretations of it. However, there is still no consensus about its chronology, its utility or its constructive evolution. This paper focus on the works carried out in Bóveda from three points of view: the analysis of its architecture, of its decoration, and the search for methods for absolute dating. It intends also to reflect on the outcome, to propose a commitment for the future, and to point out the necessity for professionals from different researching fields to work together.

The construction materials of the Santalla de Bóveda Monument, one of the most studied buildings in Galicia (Spain), are analysed to date the mortars and bricks of walls and vaults by combining three dating techniques: optically stimulated luminescence, radiocarbon and thermoluminescence. Petrological characterisation of the mortars themselves is carried out. Until now, the paintings on the vault have been interpreted as Roman, early Christian or pre-Romanesque, depending on the interpretative framework used by the researcher who studied them. There is also no consensus on their functionality. A total of 21 samples were collected and 39 datings were made. The results are conclusive: the original building dates from the second half of the 4th century AD, the paintings date from the beginning of the 7th century or the upper floor from the 10th-12th centuries. These results make it necessary to review the history of Galician architecture between Late Antiquity and the Early Medieval Ages.