| Year/Month/Day |
Event |
| 1046 | Emperor Henry III establishes German reform popes, to 1057 |
| 1050 | Henry, son of Emperor Henry III, born |
| 1056 | Henry III dies; regents until 1065 |
| 1059 | Nicholas II selected, pope until 1061 |
| 1059 | Papal Election Decree (College of Cardinals) |
| 1061 | Alexander II elected, pope until 1073 |
| 1065 | Henry IV attains his majority, becomes king, to 1084, emperor, to 1106 |
| 1073 | Saxons revolt against Henry IV |
| 1073 | Cardinal Hildebrand becomes Gregory VII, pope until 1085 |
| 1074 | Gregory VII proposes crusade to Henry IV |
| 1075 | Henry IV defeats Saxons |
| 1075 | Henry IV installs Archbishop of Milan |
| 1075.12 | Gregory VII threatens to depose and excommunicate Henry IV |
| 1076.01.26 | Henry IV condemns Gregory VII |
| 1076.01.26 | At a synod in Worms, German Bishops renounce Gregory VII |
| 1076.02 | Gregory VII excommunicates Henry IV |
| 1076 | Gregory VII deposes Henry |
| 1076 | Lombards, Swabians, Bavarians join Saxons in revolt |
| 1076 | Saxons ask Gregory VII to make a new king |
| 1076 | Gregory absolves them of fealty |
| 1076 | Bishops begin to withdraw support for Henry IV |
| 1076.10 | Henry arranges penance because unsure of bishops |
| 1076 | Princes invite Gregory to Ausburg to judge dispute with King Henry |
| 1077.01.28 | Henry goes to Canossa, is absolved, but not reinstated as king |
| 1077.03 | Princes elect Rudolph of Swabia as King |
| 1078 | Henry routs Rudolph at Wurzburg |
| 1080.03 | Gregory once again excommunicates Henry; recognizes Rudolph as King |
| 1080 | Henry and some bishops elect Wibert of Ravenna Pope Clement III |
| 1080 | Henry cuts off Rudolph's hand in battle; Rudolph dies |
| 1081 | Princes elect Hermann of Salm King |
| 1081 | Henry marches on Rome and sets up Clement III |
| 1081 | Gregory seeks refuge in Castel Sant' Angelo (Hadrian's Tomb, within the walls of Rome, now fortified) |
| 1083 | Henry leaves Rome, having garrisoned it with 300 soldiers |
| 1084 | Papal election of Clement III repeated in Rome, Clement consecrated |
| 1084 | Clement III consecrates Henry Emperor |
| 1084 | Gregory flees Rome, seeks refuge with Normans |
| 1085 | Gregory dies at Salerno |
| 1085 | Clement III expelled from Rome |
| 1085 | Henry attacks Rome again |
| 1086 | Rome elects Pope Victor III, pope until 1088 |
| 1087 | Henry's son Conrad consecrated king (to insure succession) |
| 1088 | Pope Urban II elected, pope until 1099 |
| 1093 | Conrad revolts with Mathilda of Tuscany, crowned king of Italy |
| 1095.11.27 | Urban II preaches the First Crusade before the French nobility |
| 1097 | Henry IV leaves Italy, crowns Conrad's younger brother, Henry |
| 1101 | Conrad dies |
| 1104 | Younger Henry revolts against his father |
| 1104 | Henry IV abdicates |
| 1106 | Henry IV dies, succeeded by Henry V |
| 1122 | Concordat of Worms |