Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Benedictine Convent of St John at Müstair' has mentioned 'High Middle Ages' in the following places:
Occurrence Sentence Text Source
Criterion (iii): The conventual ensemble is one of the most coherent architectural works of the Carolingian period and High Middle Ages, with the most extensive cycle of known paintings for the first half of the 9th century.