When war with France broke out again in 1202, John achieved early victories, but shortages of military resources and his treatment of Norman, Breton and Anjou nobles resulted in the collapse of his empire in northern France in 1204.

Philip II of France | Phillip II's successful invasion of Duchy of Normandy | Normandy in 1204 ; blue arrows indicate the movement of Philip II's forces and light blue Philip's Breton allies

Thus it was held by Roland de Dinan, a Breton lord, in 1167 ; Robert de Beaumont, 4th Earl of Leicester before 1204 ; Theodoric the Teuton, a servant of King John, after 1204 ; William Marshal, 2nd Earl of Pembroke, in 1217, and intermittently by the third and fourth Earls up to 1237 ; Simon de Steyland, the King's clerk, around 1237 ; John son of Geoffrey, described as " of the lands of the Bretons ", from 1240 ; Nicholas of Ely, Bishop of Winchester, from about 1272 ; and then by three successive queens: Queen Eleanor, Queen Margaret, and Queen Isabella, from 1280 until 1331.

## Alix de Poitiers ( died 1233 ), married 1204 Guy I Embriaco, lord of Gibelet ( d. ca 1233 )

Another branch of the family founded in 1204 a Despotate of Epirus, under Michael I Komnenos Doukas, great-grandson of Emperor Alexios I. Helena Doukaina Komnene, a child of that branch of the family, married Guy I De La Roche thereby uniting the Komnenos and the De La Roche houses-with Komnenos family members eventually becoming Dukes of Athens.

* Guy Pare ( 1204 – 1206 )

Abandoned by his supporters and enemies alike, Alexios V was captured near Mosynopolis by the advancing Latins under Thierry de Loos in November 1204.

de: 1204

* To appoint a de facto ruler in cases where the king was a minor or seriously ill ( e. g. Håkon galen in 1204 during the minority of king Guttorm, Skule Bårdsson in 1217 during the illness of king Inge Bårdsson ).

The relative lack of popularity of the Roman de Rou may reflect the loss of interest in the history of the Duchy of Normandy following the incorporation of continental Normandy into the kingdom of France in 1204.

Its most interesting portion is the description of the occupation of Constantinople in 1204, which should be read with Geoffroi de Villehardouin's and Paolo Rannusio's works on the same subject.

During the 1204 siege, Henry led a chevauchée expedition to gain supplies and raided a castle in Philia, near the Black Sea with, according to Robert de Clari, about 30 knights and an unspecified number of mounted sergeants.

In April 1204 Walter returned to France with John de Gray the Bishop of Norwich, Eustace the Bishop of Ely, William Marshal, and Robert de Beaumont the Earl of Leicester to seek peace with Philip Augustus.

William de Braose was born in Brecon, probably between 1197 and 1204.

When Robert de Beaumont, 4th Earl of Leicester died in 1204 leaving no male heir his estates were divided between his two sisters.

As Eleanor of Aquitaine ( 1122 ?/ 1124 ?- 1204 ) was the first high profile bearer of the name and as she was the daughter of Aénor de Châtellerault it has been suggested that the name Eleanor originated with Eleanor of Aquitaine, the postulation being that Eleanor of Aquitaine was named Aénor after her mother but referred to as Aliénor that name representing " Alia-Aénor " i. e. the other Aénor.

He is considered one of the most important historians of the time period, best known for writing the eyewitness account De la Conquête de Constantinople ( On the Conquest of Constantinople ), about the battle for Constantinople between the Christians of the West and the Christians of the East on 13 April 1204.

* Nicola de Romanis ( d. 1219 ) ( 1204, 1211 )

* Waleran de Beaumont, 4th Earl of Warwick ( 1153 – 1204 ), son of Roger

Maud de Lovetot married Gerard de Furnival in 1204 and the castle and town of Sheffield passed to the Furnival family.

Geoffroy de Joinville, uncle of the famous chronicler of the Crusades Jean de Joinville, died at Krak des Chevaliers in 1203 or 1204 and was buried within the castle's chapel.

That evidence proves that by 1202 Eustace was the seneschal and bailiff of the count of Boulogne, Renaud de Dammartin and that in c. 1204, the two quarrelled and, accused of mishandling his stewardship, Eustace fled and was declared an outlaw.

* 1263 – King Haakon IV of Norway ( b. 1204 )

Dublin Castle, which became the centre of Norman power in Ireland, was founded in 1204 as a major defensive work on the orders of King John of England.

One of the oldest is Dublin Castle, which was first founded as a major defensive work on the orders of King John of England in 1204, shortly after the Norman invasion of Ireland in 1169, when it was commanded that a castle be built with strong walls and good ditches for the defence of the city, the administration of justice, and the protection of the King ’ s treasure.

* 1204 – King Philip Augustus of France conquers Rouen.

In 1204, during the reign of England's King John, mainland Normandy was taken from England by France under Philip II of France.

* 1204 — Fall of Normandy from Angevin hands to the French King, Philip Augustus, end of Norman domination of France.

* June 6 – King Henry I of Castile ( b. 1204 )

* King Guttorm of Norway ( d. 1204 )

* 1204 BC: Theseus, legendary King of Athens, is deposed after a reign of 30 years and succeeded by Menestheus, great-grandson of Erichthonius II of Athens and second cousin of Theseus ' father Aegeus.

* December 15 – King Haakon IV of Norway ( b. 1204 )

* 1204 BC: Theseus, legendary King of Athens, is deposed after a reign of 30 years and succeeded by Menestheus, great-grandson of Erichthonius II of Athens and second cousin of Theseus ' father Aegeus.

1204 – 23 June 1265 ), daughter of King Ottokar I of Bohemia.

Perche had come to England to try and recover the honour of Perche which had been lost in 1204 by his mother ( a niece of John, King of England ) – this included Newbury and Shrivenham in Berkshire, Toddington in Buckinghamshire, and Haughley in Suffolk.

He and the king had a falling out in the aftermath of the loss of the duchy, when he was sent with the earl of Leicester as ambassadors to negotiate a truce with King Philip II of France in 1204.

The castle was captured by King Philip II of France in 1204.

In this enterprise in the summer of 1204, Baldwin came into collision with Boniface of Montferrat, the rival candidate for the empire, who was to receive a large territory in Macedonia with the title of King of Thessalonica.

Dublin Castle was first founded as a major defensive work by Meiler Fitzhenry on the orders of King John of England in 1204, some time after the Norman invasion of Ireland in 1169, when it was commanded that a castle be built with strong walls and good ditches for the defence of the city, the administration of justice, and the protection of the King ’ s treasure.

Haakon Haakonsson ( c. March / April 1204 – 16 December 1263 ) ( Old Norse: Hákon Hákonarson ; Norwegian: Håkon Håkonsson ), sometimes called Haakon the Old in contrast to his son with the same name, and known in modern regnal lists as Haakon IV, was the King of Norway from 1217 to 1263.

In 1204 King John granted the rights for a fair at the feast of All Saints, 1 November, and in 1258 Henry III granted the right for fair on the feast of St John the Baptist, 24 June.

De Braose served in the war of 1204 against King Philip II of France in France.

* John I ( 1199 – 1216 ), also King of England, duke in right of his mother until 1204.

Nearly one hundred years later, in 1204, King Philip II Augustus of France conquered the region, apart from the Channel Islands.