Die Regesten des Kaiserreiches unter Friedrich I. 1152 -1190

The present publication includes the historical tradition being relevant for the history of the Western medieval empire under the reign of Frederick Barbarossa from 1181 to 1190. Highlights of this decade were the deposition of Henry the Lion (1181), the peace of Constance with the Lombard Communes (1183), the pentecosten-festivities at Mainz (1184), the last sojourn of the Swabian ruler in Italy (1184-1186) with the nuptials of Henry VI with Constance of Sicily in Milan (January 27, 1186), the Diet called "Jesu Christi" at Mainz with the decision to start the crusade (1188) and the crusade itself until the death of the Emperor in the river Saleph (now: Gök-su) on June 10, 1190. The first three volumes - 1122/1152 until 1158 June, 1158 july until 1168 march and 1168 march until the end of the year 1180 - have been published in 1980, 1991 and 2001. Now, after the finalization of vol. 4 a statistical approach towards the whole time of Frederick's government is possible: In doing so it arises that vol. 4 with 892 regesta is taking the second place in the ranking of all 4 volumes (vol. 1: 1217 regesta - vol. 3: 804 regesta - vol. 1: 558 regesta). Although the application of statistical