The monastery of San Miguel is located in Bárzana, just eight kilometres from Tinéu on the Way of St James. It was built at different times. Only a mullioned window and a tombstone remain from the first stage, between the 10th and 11th centuries.
The nave, the portals and the east end with three apses correspond to the Romanesque stage, with the central apse being larger than the other two. The cloister dates from the late 18th century and has recently been restored.
The two Romanesque portals have a fairly complex structural design. The west-facing portal at the foot of the church is hidden under a building constructed at a later date, and provides access to the bottom of the stairs leading to the convent buildings. It is divided into three orders of semi-circular arches, resting on columns with plant-motif capitals. The side portal is sheltered under the porch that separates it from the cloister and consists of a semi-circular arch adorned with prismatic-headed nails.
Inside, the very wide nave leads to the three apses via semi-circular arches and is separated from the central apse by a triumphal arch with two archivolts. The interior of the chapels is decorated with simple murals. The themes are religious, containing very diverse scenes. A quite deteriorated painting depicting two human figures, an ox and an eagle was discovered in the main chapel.
