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EARLY GERMANY AND HOLY ROMAN EMPIRE: 843 to 1273 | ![]() |
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| 843 | Treaty of Verdun - seperate France and Germany established | |
| 936 | Otto I expands German Empire to Poland and Austria | |
| 962 | Otto I crowned Emperor of Holy Roman (German) Empire | |
| 1077 | Emperor Henry IV forced to yield to Pope Gregory VII | |
| 1122 | Concordat of Worms established papal right to invest bishops | |
| 1152 | Frederick II (Barbarossa) becomes Holy Roman Emperor | |
| 1176 | Frederick II defeated by Lombards - state of Italy founded | |
| 1273 | Rudolph I first Hapsburg Holy Roman Emperor |