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Agnes of Poitou

1025 – 1077

Holy Roman Empress

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About Agnes of Poitou

Lived 1025 – 1077 (aged 51–52). Agnes of Poitou was a sovereign.

Agnes of Poitou ( – 14 December 1077) was the queen of Germany from 1043 and empress of the Holy Roman Empire from 1046 until 1056 as the wife of Emperor Henry III. From 1056 to 1061, she ruled the Holy Roman Empire as regent during the minority of their son Henry IV.

After the death of her husband, she proved an inexperienced regent unable to effectively assert her power and secure loyal allies. In Germany, she is still remembered as a sympathetic historical figure, even if a flawed politician.

Early life

Agnes was the daughter of the Ramnulfid Duke William V of Aquitaine (d. 1030) and Agnes of Burgundy and as such a member of the Ramnulfid family.

Empress

Agnes married King Henry III of Germany in November 1043 at the Imperial Palace Ingelheim. She was his second wife This marriage helped to solidify the Empire's relationships with the princely houses in the west. Henry III had secured the election of his son as King of the Romans on his deathbed. Aided by Abbott Hugh of Cluny and Pope Victor II, also bishop of Eichstätt, Agnes tried to continue her husband's politics and to strengthen the rule of the Salian dynasty. However, despite being related to kings of Italy and Burgundy, she gained little respect as a leader. The loss of some of her family's ancestral lands later weakened her son's position tremendously.

To win allies, she gave away three German duchies: and to replace him by the bishop of Florence, Nicholas II. Thereafter, on Easter 1059 Nicholas issued the momentous papal bull In nomine Domini establishing the cardinals as the sole electors of the pope, denying this power to the emperor and all temporal rulers, including Agnes herself.

When Pope Alexander II was elected on 30 September 1061, Empress Agnes refused to acknowledge him and had Honorius II elected. This schism did not end until Pentecost 1064. The empress' candidate could not prevail against the Roman Curia; in consequence, Agnes retired from politics, leaving the regency to her confidant Bishop Henry II of Augsburg.

Bishop Henry did not receive wide acceptance due to his awkward and haughty manners, as well as scandalous rumours about his relationship with the empress, as recorded by Lambert of Hersfeld. Moreover, the fact that the heir to the throne was raised by common ministeriales provoked anger among the princes. In 1062, young Henry IV was abducted by a group including Archbishop Anno II of Cologne and Otto of Nordheim, in a conspiracy to remove Agnes from the throne, referred to as the Coup of Kaiserswerth. Henry was brought to Cologne, and despite jumping overboard to escape, he was recaptured. From this point, the power shifted to Rome, as the pope elected the emperor.

Legacy Agnes is a featured figure on Judy Chicago's installation piece The Dinner Party, being represented as one of the 999 names on the Heritage Floor.

Issue Agnes and Henry's children were: Adelaide II (1045, Goslar – 11 January 1096), abbess of Gandersheim from 1061 and Quedlinburg from 1063 Gisela (1047, Ravenna – 6 May 1053) Matilda (October 1048 – 12 May 1060, Pöhlde), married 1059 Rudolf of Rheinfelden, duke of Swabia and anti-king (1077) Henry, his successor Conrad II (1052, Regensburg – 10 April 1055), Duke of Bavaria (from 1054) Judith (1054, Goslar – 14 March 1092 or 1096), married firstly 1063 Solomon of Hungary and secondly 1089 Ladislaus I Herman, Duke of Poland

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Important facts

Born
1025, Poitou
Birth century
Occupation
Positions held
Queen consort, Regent
Also known as
Agnes von Poitou

Family & relationships

Spouse
Henry III, Holy Roman Emperor
Child
Adelaide II, Abbess of Quedlinburg
Child
Conrad II, Duke of Bavaria
Child
Henry IV, Holy Roman Emperor
Child
Judith of Swabia
Child
Matilda of Germany, Duchess of Swabia
Parent
Agnes of Burgundy, Duchess of Aquitaine
Parent
William V, Duke of Aquitaine

People in Agnes of Poitou's life

Named in this biography and alive at the same time

Contemporaries

People whose lives overlapped Agnes of Poitou's

Frequently asked questions

Who was Agnes of Poitou?

Holy Roman Empress

When was Agnes of Poitou born?

Agnes of Poitou was born in 1025 in Poitou.

When did Agnes of Poitou die?

Agnes of Poitou died on 14 December 1077 in Rome.

What was Agnes of Poitou's occupation?

Agnes of Poitou was a sovereign.

Sources & further reading

· Wikipedia: Agnes of Poitou

· Wikidata: Q262192

· DBpedia: Agnes of Poitou

Cite this page

APA: Biography.guide. (2026). Agnes of Poitou. https://biography.guide/agnes-of-poitou/

MLA: "Agnes of Poitou." Biography.guide, https://biography.guide/agnes-of-poitou/.

Chicago: "Agnes of Poitou." Biography.guide. https://biography.guide/agnes-of-poitou/.

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