List of Bishops of Hildesheim
Bishops of Hildesheim till 1235

Name
From
To
-
Remarks
Gunthar
815
834
-
-
Rembert
834
835
-
-
Ebbo
835
847
-
Archbishop of Reims 816–835
Altfrid
847
874
-
-
Ludolf
874
874
-
-
Marquard
874
880
-
-
Wigbert
880
908
-
-
Waldbert
908
919
-
-
Sehard
919
928
-
-
Diethard
928
954
-
-
Otwin
954
984
-
-
Osdag
985
989
-
-
Gerdag
990
992
-
-
Bernward
993
1022
-
-
Godehard
1022
1038
Hildesheim-Bernward-Dom-Hildesia.JPG
-
Thietmar
1038
1044
-
-
Azelin
1044
1054
-
-
Hezilo
1054
1079
-
-
Udo of Gleichen-Rheinhausen
1079
1114
-
-
Bruning
1115
1119
-
canonically irregular, not consecrated but imperially invested
Berthold I of Alvensleben
1119
1130
-
-
Bernard I
1130
1153
-
-
Bruno
1153
1161
-
-
Herrmann of Wennerde
1162
1170
-
-
Adelog of Dorstadt
1171
1190
-
-
Berno
1190
1194
-
-
Conrad I of Querfurt
1194
1199
-
Prince-Bishop of Würzburg 1198–1202
Heribert of Dahlem
1199
1216
-
-
Siegfried I of Lichtenberg
1216
1221
-
-
Conrad II of Reisenberg
1221
1246
-
-

Question: When was Altfrid the Bishop of Hildesheim?
Answer: Altfrid was the Bishop of Hildesheim from 847 to 874.