Arthur I, Duke of Brittany (1187 – 1203), was the posthumous son of Geoffrey Plantagenet and Constance, Duchess of Brittany, and designated heir to the throne of England, originally intended to succeed Richard I. The Duke of Brittany (French: Duc de Bretagne) governed Brittany, a region with strong traditions of independence, including a language and culture all its own. ... Events May 1 - Battle of Cresson - Saladin defeats the crusaders July 4 - Saladin defeats Guy of Lusignan, King of Jerusalem, at the Battle of Hattin. ... Events April 16 - Philip II of France enters Rouen, leading to the eventual unification of Normandy and France. ... Geoffrey Plantagenet (September 23, 1158 – August 19, 1186) was Duke of Brittany between 1181 and 1186, through his marriage with the heiress Constance. ... Constance of Brittany (1161 – September 5, 1201) was Duchess of Brittany between 1186 and 1196. ... Royal motto (French): Dieu et mon droit (Translated: God and my right) Englands location within the UK Official language English de facto Capital London de facto Largest city London Area - Total Ranked 1st UK 130,395 km² Population - Total (mid-2004) - Density Ranked 1st UK 50. ... Richard I (September 8, 1157 – April 6, 1199) was King of England from 1189 to 1199. ...

While Richard was away on crusade, Constance took more independence for Brittany, and in 1194 had the young Arthur proclaimed as its Duke. This article is about the medieval Crusades . ... Events November 20 - Palermo falls to Henry VI, Emperor of the Holy Roman Empire December 25 - Henry VI is crowned king of Sicily. ...

When Richard died in 1199, his brother John immediately claimed England, but much of the French nobility refused to recognize him as king, preferring Arthur, who declared himself vassal of Philip Augustus. This was sufficient excuse for John, who invaded France in 1202. Events John Lackland, becomes King of England Births Isobel of Huntingdon (d. ... John (December 24, 1166–October 18/19, 1216) reigned as King of England from April 6, 1199, until his death. ... A vassal or liege, in the terminology that both preceded and accompanied the feudalism of medieval Europe, is one who enters into mutual obligations with a lord, usually of military support and mutual protection, in exchange for certain guarantees, which came to include the terrain held as a fief. ... Philip II (French: Philippe II), called Philip Augustus (French: Philippe Auguste) (August 21, 1165 – July 14, 1223), was King of France from 1180 to 1223. ... Events August 1 - Arthur of Brittany captured in Mirebeau, north of Poitiers Beginning of the Fourth Crusade. ...

Philip having recognized Arthur's right to Brittany, Anjou, Maine, and Poitou, Arthur invaded the last-named. But on July 31, 1202 he was surprised by King John while besieging Mirabeau (where he was holding his grandmother Eleanor of Aquitaine hostage), captured, and imprisoned at Falaise, guarded by Hubert de Burgh. At this time also his sister Eleanor was captured and imprisoned at Corfe. The following year he was transferred to Rouen, under the charge of William de Braose, and then vanished mysteriously in April 1203. Traditional coat of arms This article is about the historical duchy and French province, as well as the cultural area of Brittany. ... Anjou is a former county (c. ... Maine is one of the traditional provinces of France. ... Poitou was a province of France whose capital city was Poitiers. ... Mirabeau can refer to: Honoré Mirabeau Mirabeau, a commune of the Alpes-de-Haute-Provence département, in southeastern France Mirabeau, a commune of the Vaucluse département, in southern France Les Pennes-Mirabeau, a commune of the Bouches-du-Rhône département, in southern France the Cours Mirabeau is a famous street... Eleanor of Aquitaine Eleanor of Aquitaine (Bordeaux, France, 1124 – March 31, 1204 in Fontevrault, Anjou) was one of the wealthiest and most powerful women in Europe during the Middle Ages. ... Falaise is the name of several communes in France: Falaise, in the Ardennes département Falaise, in the Calvados département This is a disambiguation page — a navigational aid which lists other pages that might otherwise share the same title. ... Hubert de Burgh (~1165 - May 12, 1243) was Earl of Kent, Justiciar of England and Ireland, and one of the most influential men in England during the reigns of John and Henry III. De Burgh came from a minor gentry family about which little is known. ... Eleanor the Fair Maid of Brittany ( 1184–1241) was the daughter of Geoffrey Plantagenet and Constance, Duchess of Brittany. ... For the village in Dorset see Corfe Castle. ... Location within France Rouen (pronounced in French, sometimes also ) is the historical capital city of Normandy, in northern France, and presently the capital of the Upper Normandy région. ... William de Braose was the name of several Norman barons in southern Wales following the Norman Conquest. ... Events April 16 - Philip II of France enters Rouen, leading to the eventual unification of Normandy and France. ...

The puzzle of his disappearance gave rise to various stories. One account was that Arthur's jailors feared to harm him, and so he was murdered by John directly and his body dumped in the Seine. William de Braose did rise high in John's favor after Arthur's disappearance, so much so that he was suspected of complicity, and indeed many years later, after difficulties with John, William's wife Maud de Braose directly accused the king of murdering Arthur, which resulted in Maud and her eldest son being imprisoned and starved to death therein. William escaped to France, where he was supposed to have published a statement on what happened to Arthur, but no copy has been found. This article is about the river in France. ...

Constance of Brittany (1161 – September 5, 1201) was Duchess of Brittany between 1186 and 1196. ... The Duke of Brittany (French: Duc de Bretagne) governed Brittany, a region with strong traditions of independence, including a language and culture all its own. ... Guy of Thouars was Duke of Brittany between 1203 and 1206, succeeding his stepson Arthur I. He was the second husband of duchess Constance. ... Richard I (September 8, 1157 – April 6, 1199) was King of England from 1189 to 1199. ... Counts of Anjou, c. ...

References

• M. Dominica Legge, "William the Marshal and Arthur of Brittany", Historical Research, volume 55 (1982)
• F. M. Powicke, "King John and Arthur of Brittany", The English Historical Review, volume 24 (October 1909), pp. 659-674