Views of Boí and the Valley.
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It is a prime example of Catalan Romanesque architecture, located at the southwest entrance of Taüll village. Consecrated on December 10, 1123, by Bishop Ramon Guillem of Roda. First mentioned in a 1064 sale-exchange by Counts of Pallars Sobirà (Artau I and Llúcia) to Counts of Pallars Jussà (Ramon IV and Valença), alongside Erill Castle. Built over an 11th-century predecessor, retaining some fragments like south wall and lower apse. Shared parish with Santa Maria de Taüll; attempted Erill lords' monastic nucleus. Passed to Urgell Diocese in Late Middle Ages under co-rectors system. Key restorations: 1919-1922 mural extractions to MNAC (Museu Nacional d’Art de Catalunya in Barcelona), 1970s, 2000-2001 (new murals discovered).