La decorazione delle chiese di Sant Pere de Terrassa, esempio dell'uso politico di monumenti tardo-antichi nell'altomedioevo.

Singing to Emmanuel: The Wall Paintings of Sant Miquel in Terrassa and the 6th Century Artistic Reception of Byzantium in the Western Mediterranean

“…Since the 1950's, the paintings of Sant Miquel have been the subject of new studies (Grabar 1945;Pijoan and Gudiol 1948). The most distinguished among them were undertaken most recently by Guardia (1992), Mancho (2012Mancho ( , 2018, and Ferran (2015).…”

“…In the wake of Pijoan, and based solely on iconographic and stylistic aspects, some authors who have studied the pictorial ensemble have proposed a later dates for the paintings;near the end of the 9th century (Ainaud de Lasarte 1959Lasarte , 1976Guardia 1992;Mancho 2012Mancho , 2018, circa the year 900 (Grabar 1945), in the 10th century (Barral i Altet 1981), and even at the end of the 10th and beginning of the 11th centuries (Cook and Gudiol 1950, p. 22).…”

“…It is well worth remembering that the last proposal for a later date (Mancho 2012(Mancho , 2018 casts doubt on the technical and methodological data given for the different interventions, such that it is only based on a series of stylistic arguments defending the position that the paintings are from the time of Frodoí, Bishop of , from the second half of the 9th century, when Egara had ceased to be an episcopal see.…”