About “De rebus gestis D. Didaci Gelmirez, primi compostellani archiepiscopi”
The Historia Compostelana is a 12th-century historical chronicle written by multiple authors. It focuses on the events during the tenure of Diego Gelmírez, who served as bishop of Compostela from 1100 to 1120 and later as its first archbishop until 1140. The chronicle is divided into three books and covers the years 1100 to 1139. Its main purpose was to highlight Gelmírez' achievements and to support the religious and political authority of Santiago de Compostela. It also aimed to establish the legitimacy of the city’s foundation and its connection to Saint James the Great, reinforcing its apostolic origins. The bishopric had been moved from Iria Flavia to Compostela in 1095. (Summary adapted from Wikipedia, CC BY-SA 4.0.)
Some summaries adapted from Wikipedia, CC BY-SA 4.0.