Who was Henry IV, Holy Roman emperor?

Henry IV, born in 1050, was a significant figure in the Holy Roman Empire, holding the titles of duke of Bavaria, German king, and Holy Roman emperor. His reign was marked by a major conflict with Pope Gregory VII, known as the Investiture Controversy , concerning the appointment of church officials. This conflict led to Henry's excommunication and his famous penance at Canossa in 1077, where he sought the Pope's forgiveness. His later years were troubled by rebellions from his sons, Conrad and Henry (later Henry V). Henry IV died in 1106.

When did Henry IV rule as Holy Roman emperor?

Henry IV was the Holy Roman Emperor from 1084 to 1105/06. He was also the duke of Bavaria from 1055 to 1061 and German king from 1054 onwards. His rule was marked by a significant conflict with Pope Gregory VII over lay investiture, leading to Henry's excommunication and penance at Canossa in 1077. Later, he faced rebellions from his sons, Conrad and Henry (the future Henry V). In 1105, Henry IV was forced to abdicate by his son Henry V. He died on August 7, 1106.

What was the Holy Roman Empire during Henry IV's reign?

During Henry IV's reign (1056-1105/06), the Holy Roman Empire was marked by a significant power struggle between the emperor and the papacy. This conflict, known as the Investiture Controversy , centered on the appointment of bishops and the extent of secular authority over the church. Pope Gregory VII challenged Henry IV's traditional rights, leading to Henry's excommunication and a period of civil war in Germany. The Empire faced internal opposition from princes and bishops, who saw an opportunity to undermine imperial authority. Despite Henry IV's temporary submission to the Pope at Canossa in 1077, the conflict continued, shaping the political landscape of the Holy Roman Empire and setting the stage for future power struggles.

What challenges did Henry IV face as emperor?

Henry IV, as Holy Roman Emperor, faced significant challenges, most notably the Investiture Controversy with Pope Gregory VII. This conflict centered on the appointment of church officials, with Gregory VII ultimately banning lay investiture, a practice that had previously been accepted. Henry's defiance of papal commands led to his excommunication and deposition in 1076. To save his crown, Henry submitted to the pope at Canossa in 1077, though tensions persisted. The emperor's troubles were compounded by revolts from German princes and a civil war, as well as a second excommunication in 1080. Despite these challenges, Henry managed to capture Rome in 1084 and install Clement III as antipope.

What was the Investiture Controversy and how did it involve Henry IV?

The Investiture Controversy was a conflict in the late 11th and early 12th centuries between the papacy and the monarchies of the Holy Roman Empire, France, and England. At issue was the rulers' customary prerogative to invest and install bishops and abbots with the symbols of their office. King Henry IV of Germany (1056–1105/6) and Pope Gregory VII (1073–85) became increasingly estranged over Henry's refusal to obey papal commands, disrupting the traditional harmony between the two offices. In January 1076, Henry IV and German bishops renounced their obedience to the pope, who in turn deposed and excommunicated them. Gregory VII eventually banned lay investiture, a renunciation that was problematic for Henry IV, who then faced opposition from papal supporters and German princes.

How did Henry IV's conflicts with the pope affect his rule and legacy?

Henry IV's reign was significantly affected by his conflicts with the papacy, particularly during the Investiture Controversy . His defiance of papal authority, such as appointing his own archbishop of Milan, led to excommunication by Pope Gregory VII , undermining his legitimacy and emboldening internal opposition. The dramatic Canossa event, where Henry sought absolution, symbolized a shift in power dynamics, with the papacy asserting moral authority over the emperor. Despite regaining some power, Henry faced continued challenges, including the election of an antipope and persistent revolts. Ultimately, the conflicts weakened the empire and strengthened the papacy , contributing to long-term instability in the region.

Henry IV

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Henry IV summary

Henry IV

Holy Roman emperor

Also known as: Henry VIII

Written by

Franz-Josef Schmale

Fact-checked by

Britannica Editors

Last updated

Nov. 8, 2026 •History

Top Questions

Who was Henry IV, Holy Roman emperor?
Henry IV, born in 1050, was a significant figure in the Holy Roman Empire, holding the titles of duke of Bavaria, German king, and Holy Roman emperor. His reign was marked by a major conflict with Pope Gregory VII, known as the Investiture Controversy, concerning the appointment of church officials. This conflict led to Henry's excommunication and his famous penance at Canossa in 1077, where he sought the Pope's forgiveness. His later years were troubled by rebellions from his sons, Conrad and Henry (later Henry V). Henry IV died in 1106.
4 Britannica Sources
Created from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.
When did Henry IV rule as Holy Roman emperor?
Henry IV was the Holy Roman Emperor from 1084 to 1105/06. He was also the duke of Bavaria from 1055 to 1061 and German king from 1054 onwards.

His rule was marked by a significant conflict with Pope Gregory VII over lay investiture, leading to Henry's excommunication and penance at Canossa in 1077. Later, he faced rebellions from his sons, Conrad and Henry (the future Henry V). In 1105, Henry IV was forced to abdicate by his son Henry V. He died on August 7, 1106.
3 Britannica Sources
Created from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.
What was the Holy Roman Empire during Henry IV's reign?
During Henry IV's reign (1056-1105/06), the Holy Roman Empire was marked by a significant power struggle between the emperor and the papacy. This conflict, known as the Investiture Controversy, centered on the appointment of bishops and the extent of secular authority over the church.

Pope Gregory VII challenged Henry IV's traditional rights, leading to Henry's excommunication and a period of civil war in Germany. The Empire faced internal opposition from princes and bishops, who saw an opportunity to undermine imperial authority. Despite Henry IV's temporary submission to the Pope at Canossa in 1077, the conflict continued, shaping the political landscape of the Holy Roman Empire and setting the stage for future power struggles.
5 Britannica Sources
Created from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.
What challenges did Henry IV face as emperor?
Henry IV, as Holy Roman Emperor, faced significant challenges, most notably the Investiture Controversy with Pope Gregory VII. This conflict centered on the appointment of church officials, with Gregory VII ultimately banning lay investiture, a practice that had previously been accepted.

Henry's defiance of papal commands led to his excommunication and deposition in 1076. To save his crown, Henry submitted to the pope at Canossa in 1077, though tensions persisted. The emperor's troubles were compounded by revolts from German princes and a civil war, as well as a second excommunication in 1080. Despite these challenges, Henry managed to capture Rome in 1084 and install Clement III as antipope.
6 Britannica Sources
Created from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.
What was the Investiture Controversy and how did it involve Henry IV?
The Investiture Controversy was a conflict in the late 11th and early 12th centuries between the papacy and the monarchies of the Holy Roman Empire, France, and England. At issue was the rulers' customary prerogative to invest and install bishops and abbots with the symbols of their office.

King Henry IV of Germany (1056–1105/6) and Pope Gregory VII (1073–85) became increasingly estranged over Henry's refusal to obey papal commands, disrupting the traditional harmony between the two offices. In January 1076, Henry IV and German bishops renounced their obedience to the pope, who in turn deposed and excommunicated them. Gregory VII eventually banned lay investiture, a renunciation that was problematic for Henry IV, who then faced opposition from papal supporters and German princes.
1 Britannica Source
1. Investiture Controversy
Created from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.
How did Henry IV's conflicts with the pope affect his rule and legacy?
Henry IV's reign was significantly affected by his conflicts with the papacy, particularly during the Investiture Controversy.

His defiance of papal authority, such as appointing his own archbishop of Milan, led to excommunication by Pope Gregory VII, undermining his legitimacy and emboldening internal opposition. The dramatic Canossa event, where Henry sought absolution, symbolized a shift in power dynamics, with the papacy asserting moral authority over the emperor.

Despite regaining some power, Henry faced continued challenges, including the election of an antipope and persistent revolts. Ultimately, the conflicts weakened the empire and strengthened the papacy, contributing to long-term instability in the region.
5 Britannica Sources
Created from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.

Henry IV (born November 11, 1050, Goslar?, Saxony—died August 7, 1106, Liège, Lorraine) was the duke of Bavaria (as Henry VIII; 1055–61), German king (from 1054), and Holy Roman emperor (1084–1105/06), who engaged in a long struggle with Hildebrand (Pope Gregory VII) on the question of lay investiture (see Investiture Controversy), eventually drawing excommunication on himself and doing penance at Canossa (1077). His last years were spent countering the rebellion of his sons Conrad and Henry (the future Henry V).

Early years

Henry’s father, Henry III, had retained a firm hold on the church and had resolved a schism in Rome (1046), opening new activities for the reformers. At Easter 1051, the boy was baptized after the German princes had taken an oath of fidelity and obedience at Christmas 1050. On July 17, 1053, he was elected king at Tribur (modern Trebur, in Germany) on condition that he would be a just king. In 1054 he was crowned king in Aix-la-Chapelle (modern Aachen, in Germany), and the following year he became engaged to Bertha, daughter of the Margrave of Turin. When the emperor died in October 1056, at the age of 39, succession to the throne and survival of the dynasty were assured. The princes of the realm raised no objection when nominal government was handed over to the six-year-old boy, for whom his pious and unworldly mother became regent. Yet the early death of Henry III was the beginning of a fateful change that marked all of his son’s reign. In his will, the late emperor had appointed Pope Victor II as counsellor to the empress, and the pope solved some of the conflicts between the princes and the imperial court that had endangered peace in the empire.

After Victor’s early death (1057), however, the politically inept empress committed a number of decisive mistakes. On her own, and without the benefit of the advice of a permanent group of counsellors, she readily yielded to various influences. She turned over the duchy of Bavaria, which Henry III had given to his son in 1055, to the Saxon count Otto of Nordheim, thus depriving the king of an important foundation of his power. She gave the duchy of Swabia to Count Rudolf of Rheinfelden—who married her daughter—and the duchy of Carinthia to Count Berthold of Zähringen; both of them eventually became opponents of Henry IV. The death of the emperor also marked the disruption of German influence in Italy and of the close relationship between the king and the reform popes. Their independence soon became apparent in the elections of Stephen IX and Nicholas II, which were not influenced (as under Henry III) by the German court; in the new procedure for the election of the popes (1059); and in the defensive alliance with the Normans in southern Italy. That alliance was necessary for the popes as an effective protection against the Romans and was not directed against the German king. Yet the Normans were considered usurpers and enemies of the Holy Roman Empire. The pact thus resulted in strained relations between the pope and the German court, and those strains were aggravated by papal claims and disciplinary action taken by Nicholas II against German bishops. While the German king had so far been known as a supporter of the reformers, the empress now imprudently entered into an alliance with Italian opponents of church reform and brought about the election of Cadalus, bishop of Parma, as antipope (Honorius II) against the reigning pope, Alexander II, who had been elected by the reformers. But since she did not give effective support to Honorius, Alexander was able to prevail. Her unwise church policy was matched by an obscurely motivated submissive policy at home, which, by unwarranted cession of holdings of the crown, weakened the material foundations of the king’s power and, in addition, encouraged the rapacity of the nobles. Increasing discontent reached a climax in a conspiracy of the princes led by Anno, archbishop of Cologne, in April 1062. During a court assembly in Kaiserswerth he kidnapped the young king and had him brought to Cologne by ship. Henry’s attempt to escape by jumping into the Rhine failed. Agnes resigned as regent, and the government was taken over by Anno, who settled the conflict with the church by recognizing Alexander II (1064). Anno was, however, too dominating and inflexible a man to win Henry’s confidence, so that Adalbert, archbishop of Bremen, granting more freedom to the lascivious young king, gained increasing and finally sole influence. But he used it for such unscrupulous personal enrichment that Henry, who was declared of age in 1065, had to ban him from court early in 1066. That incident marks the beginning of the king’s own rule, for which he was badly prepared. Repeated changes in the government of the empire had an unsettling effect on the boy king and had, moreover, prevented him from being given a regular education. The selfishness of his tutors, the dissolute character of his companions, and the traumatic experience of his kidnapping had produced a lack of moral stability during his years of puberty. In addition, his love of power, typical of all the rulers of his dynasty, contributed to conduct often characterized by recklessness and indiscretion.

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In 1069, after three years of marriage, he suddenly announced his intention of divorcing his wife, Bertha. Following protests by high church dignitaries, he dropped his plan, but his mercurial behaviour incurred the displeasure of the reformers. At the same time, he was faced with domestic difficulties that were to harass him throughout his reign. After his mother had freely dispensed of lands during her regency, he began to increase the royal possessions in the Harz Mountains and to protect them by castles, which he handed over to Swabian ministerials (higher civil servants directly responsible to the crown). Peasants and nobles in Saxony were stirred up by the ruthless repossession of former royal rights that had long ago been appropriated by nobility or had become obsolete and by the high-handed and severe measures of the foreign ministerials. Henry tried to stop the unrest by imprisoning Magnus, the duke of Saxony, and by depriving the widely respected Otto of Bavaria of his duchy, after having unjustly accused him of plotting the murder of the king (1070). Then a rebellion broke out among the Saxons, which in 1073 spread so rapidly that Henry had to escape to Worms. After negotiations with Welf IV, the new duke (as Welf I) of Bavaria, and with Rudolf, the duke of Swabia, Henry was forced to grant immunity to the rebels in 1073 and had to agree to the razing of the royal Harz Castle in the final peace treaty in February 1074. When the peasants, destroying the castle, also desecrated the church and the tomb of one of the king’s sons, Henry declared the peace broken. That incident assured him of support from all over the empire, and in June 1075 he won an overwhelming victory that resulted in the surrender of the Saxons. It also forced the princes at Christmas to confirm on oath the succession of his one-year-old son, Conrad.

Henry IV

Early years

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