| DD 126 |
General works |
| DD 127-135 |
481-918 |
| - DD 127 |
- General works |
| - DD 128 |
- Merovingians, 481-752 |
| - DD 129-134.9 |
- Carolingians, 752-911 |
| - - DD 134.3 |
- - Ludwig I der Deutsche (First king of Germany), 843-876 |
| DD 136-140.7 |
House of Saxony, 919-1024 |
| - DD 136 |
- Sources & documents |
| - DD 137.5 |
- General special |
| - DD 137.9.A-Z |
- Biography, A-Z |
| - DD 139 |
- Otto I, 936-973 |
| - DD 140.4 |
- Otto III, 983-1002 |
| DD 141-144 |
House of Franconia, 1024-1125 |
| - DD 141.A3-Z |
- General works |
| - DD 142 |
- Konrad II, 1024-1039 |
| - DD 143-143.8 |
- Heinrich IV, 1056-1105 |
| DD 145-155 |
Hohenstaufen period, 1125-1273 |
| - DD 147.5.A-Z |
- Biography, A-Z |
| - DD 149-149.7 |
- Friedrich I Barbarossa, 1152-1190 |
| - DD 151-153 |
- Friedrich II, 1215-1250 |