About Robert Marmion
Lived 1100 – 1144. Robert Marmion was an English military personnel.
Robert Marmion (died 1144) was an Anglo-Norman baron and soldier who rose to prominence during the wars between King Stephen and the Empress Matilda.
Origins From a Norman family originating at Fontenay-le-Marmion and born before 1108, he was the son and heir of Roger Marmion or Robert de Marmion, who held lands in Lincolnshire.
When civil war broke out in 1139, he rallied to the side of King Stephen and was sent to hold Falaise Castle in Normandy against attack from Matilda's husband, Geoffrey of Anjou. He proved to be "a warlike man with no match for boldness, fierceness or cunning" and his successful defence led Geoffrey to destroy his ancestral castle of Fontenay in reprisal.
Recalled to England, he was engaged in the assault on Coventry Castle, held by the formidable Ranulf II, Earl of Chester. He expelled the monks from the nearby St Mary's Priory and made its stone buildings into a fortified base for launching attacks on the castle. He also had ditches dug in front of the priory to impede his opponents. When the earl arrived with a relieving force, on about 16 September 1144 Marmion went out with his men to confront them but was thrown from his horse. Upon landing in one of his ditches, he was immobilized by a broken thigh and beheaded by a common soldier.
He was buried at Polesworth, in unconsecrated ground as he had been excommunicated for his desecration of St Mary's Priory.
Family His wife was named Millicent, a relation of King Henry I's second wife Adeliza of Louvain. Some sources say she was the daughter of Gervais, Count of Rethel, elder brother of King Baldwin II of Jerusalem. After Robert's death, she married Richard Camville.
Their son is given in some sources as Robert, who died before October 1181 and is supposed to be the father of a third Robert, dead in 1218.
Don’t just read it —
keep it.
Full-length biographies made to live with: read them, listen on the way to work, watch them tonight.
- E-book
- Audio
- Video
Instant download · yours to keep · every purchase keeps this site free
Important facts
People in Robert Marmion's life
Named in this biography and alive at the same time
Contemporaries
People whose lives overlapped Robert Marmion's
Frequently asked questions
Who was Robert Marmion?
English baron and soldier
When was Robert Marmion born?
Robert Marmion was born in 1100.
When did Robert Marmion die?
Robert Marmion died in 1144.
What was Robert Marmion's occupation?
Robert Marmion was a military personnel.
What nationality was Robert Marmion?
Robert Marmion was English.
Sources & further reading
· DBpedia: Robert Marmion (died 1144)
Cite this page
APA: Biography.guide. (2026). Robert Marmion. https://biography.guide/robert-marmion/
MLA: "Robert Marmion." Biography.guide, https://biography.guide/robert-marmion/.
Chicago: "Robert Marmion." Biography.guide. https://biography.guide/robert-marmion/.
Data last updated: 2026-09-20 · Spot an error? Report a correction.
Page generated 2026-09-27 05:18 UTC