This is recovery period for the town. Normans decided to donate the “Casale Cryptalearum” and all its goods to the Archiepiscopal Canteen of Taranto, starting a large economic cycle and strongly linking the social, political and religious life conditions of the town to the Taranto archbishops.
The archbishopric played a role of fundamental importance for Grottaglie leading to the creation of one of the most important historical buildings in the city: the Collegiate Church of Maria Ss.ma Annunziata, called by the people of Grottaglie “ Mother Church“.