Frederick (died October 954) was the Archbishop of Mainz from 937, following the late

Hildebert Hildebert (c. 105518 December 1133) was a French ecclesiastic, hagiographer and theologian. From 1096–97 he was bishop of Le Mans, then from 1125 until his death archbishop of Tours. Sometimes called Hildebert of Lavardin, his name may also be s ...

, until his death. He was a son of

Reginar, Duke of Lorraine Reginar Longneck or Reginar I ( 850–915), la, Rainerus or ''Ragenerus Longicollus'', was a leading nobleman in the kingdom of Lotharingia, variously described in contemporary sources with the titles of count, margrave, missus dominicus and du ...

. Immediately, Frederick acted as an opponent of Otto the Great, one of the most consistent opponents he faced. In 939, he joined the rebellion of Eberhard III of Franconia, Gilbert of Lorraine, and

Henry I of Bavaria Henry I (919/921 – 1 November 955), a member of the German royal Ottonian dynasty, was Duke of Bavaria from 948 until his death. Life He was the second son of the German king Henry the Fowler and his wife Matilda of Ringelheim. After the de ...

. He was imprisoned in

Hammelburg Hammelburg is a town in Bavaria, Germany. It sits in the district of Bad Kissingen, in Lower Franconia. It lies on the river Franconian Saale, 25 km west of Schweinfurt. Hammelburg is the oldest winegrowing town (''Weinstadt'') in Francon ...

for a while. He plotted with Henry to assassinate Otto in Easter 941 in

Quedlinburg Quedlinburg () is a town situated just north of the Harz mountains, in the district of Harz in the west of Saxony-Anhalt, Germany. As an influential and prosperous trading centre during the early Middle Ages, Quedlinburg became a center of in ...

, but they were discovered and put in captivity in

Ingelheim Ingelheim (), officially Ingelheim am Rhein ( en, Ingelheim upon Rhine), is a town in the Mainz-Bingen district in the Rhineland-Palatinate state of Germany. The town sprawls along the Rhine's west bank. It has been Mainz-Bingen's district seat ...

, being released and pardoned only after doing penance at Christmas of that year. Frederick refused to accompany Otto to

Italy Italy ( it, Italia ), officially the Italian Republic, ) or the Republic of Italy, is a country in Southern Europe. It is located in the middle of the Mediterranean Sea, and its territory largely coincides with the homonymous geographical ...

in 951. He participated in another rebellion with Liudolf, Duke of Swabia, and

Conrad, Duke of Lorraine Conrad ( – 10 August 955), called the Red (german: Konrad der Rote), was Duke of Lorraine from 944 until 953. He became the progenitor of the Imperial Salian dynasty. Life He was the son of Werner V (died about 935), a Franconian count in the ...

, luring the king to Mainz in 953. Abandoned by the Lorrainers and without Henry's support this time, the rebels were easily crushed and punished. Frederick tried to distance himself from the fighting, but died before anything could come to him.

Sources

* * {{DEFAULTSORT:Frederick 954 deaths Archbishops of Mainz 10th-century archbishops Year of birth unknown