 From the reign of Archbishop Conrad II (1024–1039) they were employed as stewards ("Vögte"), castellans ("Burggrafen") and judges in the administration of the imperial territories, and in the lay principalities.As Imperial ministerials ("Reichsministerialen") they upheld the Salian, and particularly the Hohenstaufen, imperial polity.In the Archbishopric of Salzburg the ministerials and clergy together elected Archbishop Gebhard in 1060, as well as every archbishop from 1147 to 1256 save for Conrad III (r. 1177–83).