Juliane de Fontevrault
12th-century illegitimate daughter of King Henry I of England
About Juliane de Fontevrault
Born 1090. Juliane de Fontevrault was a French.
Juliane (or Juliana) de Fontevrault (1090 – after 1136), was a French noble, the illegitimate daughter of King Henry I of England. She is notorious for attempting to murder her father. An account of these events can be found in the Historia Ecclesiastica by Orderic Vitalis.
Life
Juliane de Fontevrault was an illegitimate daughter of Henry I of England; her father, at her birth, was not yet king. Her mother is unknown, though some scholars have suggested the king's mistress Ansfrida (Ansfride), who was the mother of Richard of Lincoln and possibly Fulk FitzRoy, two other illegitimate children of Henry. Orderic's description of Juliane's mother as "a concubine" questions her identification as Ansfrida. Juliane's half-siblings included Empress Matilda, William Adelin, Sybilla, Queen of Scots, Reginald de Dunstanville, Earl of Cornwall and Robert of Gloucester.
Juliane was married to Eustace of Breteuil, the illegitimate son of William of Breteuil, in 1103. They had at least two daughters.
In February 1119, Eustace and Juliane threatened to join a rebellion against Henry I of England unless they were given the castle of Ivry. To ensure Eustace's loyalty, Henry set up a hostage exchange between Eustace and Juliane's daughters (Henry's own granddaughters), and the son of Ralph Harnec, Constable of Ivry. Perhaps instigated by Amaury de Montfort, Eustace cut out the eyes of Ralph's son and sent him back to his father. Ralph furiously appealed to Henry for justice. Henry allowed Ralph to blind Eustace and Juliane's daughters, as well as cut off the tip of their noses. The incident further estranged the king and his daughter.
Enraged, Juliane journeyed to Breteuil to defend the citadel, where she found an unmotivated garrison. Informed of Juliane's actions, the king moved to Breteuil and laid siege to the citadel. Seeing no other solution, Juliane agreed to a parley with her father, but when she met with him, she unsuccessfully shot at him with a crossbow. He died in 1136, and Henry died on 1 December 1135. After the death of her husband Juliane retired to Fontevrault Abbey. She lived to see early conflicts between her half-sister Matilda and her cousin Stephen.
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Important facts
Family & relationships
Frequently asked questions
Who was Juliane de Fontevrault?
12th-century illegitimate daughter of King Henry I of England
When was Juliane de Fontevrault born?
Juliane de Fontevrault was born in 1090.
What nationality was Juliane de Fontevrault?
Juliane de Fontevrault was French.
Sources & further reading
· Wikipedia: Juliane de Fontevrault
· DBpedia: Juliane de Fontevrault
Cite this page
APA: Biography.guide. (2026). Juliane de Fontevrault. https://biography.guide/juliane-de-fontevrault/
MLA: "Juliane de Fontevrault." Biography.guide, https://biography.guide/juliane-de-fontevrault/.
Chicago: "Juliane de Fontevrault." Biography.guide. https://biography.guide/juliane-de-fontevrault/.
Data last updated: 2026-09-23 · Spot an error? Report a correction.
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