La chiesa di Sant'Eusebio a Vercelli tra tarda antichità e Medioevo: osservazioni su vecchi e nuove ipotesi ricostruttive

[Machine translation] The church of Sant'Eusebio in Vercelli, a cemetery and martyrdom center in the early Christian era and a cathedral since the tenth century, represents an ecclesiastical center of great importance in the Italian North-West. It preserved the memory of Saint Eusebius, buried here, and was the seat of one of the oldest dioceses in that area, a powerful episcopate and an equally influential canonical chapter. The ancient building underwent a total renovation between the 16th and 19th centuries, with the exception of the bell tower, which still stands today for most of its height in the 12th century. The contribution focuses on the church prior to the reconstructions of the modern age, also the subject of recent reinterpretations. Through an examination of written, graphic sources (historical cartography) and existing material data, an attempt is made to recompose the long and complex architectural history of the building, with particular attention to medieval phases, often underestimated in historiography, thus reopening the debate within the scientific community.