The following chart demonstrates links among several of the most prominent reformers, sometimes of kinship, sometimes of patron and client, mentor and student, focussed through the Ottonian royal chancery and chapel and its greatest patron, Archbishop Bruno of Cologne. (4) These links created a network of clerics, which initiated and facilitated the exchange and implementation of new policies affecting organizational, ecclesiastical, educational, and liturgical practices.
Evidence suggests that one of Dunstan's biographers was a monk who studied under Bishop Everarcher of Liege, friend and protege of Bruno of Cologne.
Rather of Verona--himself a member of the network (he was named by Bruno of Cologne as Bishop of Liege before taking up the see of Verona) indicates that many priests were ignorant of such mundane matters as how to hold the communion cup, or how to hold their fingers when blessing the congregation, or that they should not wear dirty vestments, spurs, or swords when celebrating the mass.
We cannot connect many of the Lotharingian/German reformers directly to the invention or introduction of the Quem quaeritis Easter tropes, but we do know that the most influential reformer of them all, Bruno of Cologne, liked drama and mime.
St Emmeram also produced two bishops of Regensburg between 940 and 972, Gunther and Michael, as well as other figures who became intimates of the circle of reformers connected with the court chancery, Bruno of Cologne, and the Lotharingian reform policies.
Archbishop Bruno of Cologne founded St Pantaleon, and he himself visited, and sent tutors to, the convent of Gandersheim.
Willigis, under whom the dispute between Mainz and Hildesheim waxed hot, was a protege of William of Mainz, and Bruno of Cologne. He also served as tutor to Otto II and probably to Otto's daughter Sophia, who entered Gandersheim during Hroswitha's lifetime.
Possibly, Hroswitha herself may have traveled to the Ottonian court, and may have been tutored by Bruno of Cologne, who was uncle to her abbess Gerberga, and perhaps also by Bruno's protege Rather of Verona, who, as stated above, denounced clerics who attended profane plays and games.