William IV (937 – 3 February 994), called Fierebras or Fierebrace (meaning "Proud Arm", from the French ''Fier-à-bras'' or ''Fièrebrace'', in turn from the

Latin Latin (, or , ) is a classical language belonging to the Italic branch of the Indo-European languages. Latin was originally a dialect spoken in the lower Tiber area (then known as Latium) around present-day Rome, but through the power of the ...

''Ferox brachium''), was the

Duke of Aquitaine The Duke of Aquitaine ( oc, Duc d'Aquitània, french: Duc d'Aquitaine, ) was the ruler of the medieval region of Aquitaine (not to be confused with modern-day Aquitaine) under the supremacy of Frankish, English, and later French kings. As su ...

and

Count of Poitou Among the people who have borne the title of Count of Poitiers (or ''Poitou'', in what is now France but in the Middle Ages became part of Aquitaine) are: *Bodilon * Warinus (638–677), son of Bodilon * Hatton (735-778) Carolingian Counts ...

from 963 to his retirement in 990. William's father, William III, abdicated to the abbey of Saint-Cyprien in

Poitiers Poitiers (, , , ; Poitevin: ''Poetàe'') is a city on the River Clain in west-central France. It is a commune and the capital of the Vienne department and the historical centre of Poitou. In 2017 it had a population of 88,291. Its agglomerat ...

and left the government to Fierebras. His mother was Gerloc, the daughter of Duke

Rollo of Normandy Rollo ( nrf, Rou, ''Rolloun''; non, Hrólfr; french: Rollon; died between 928 and 933) was a Viking who became the first ruler of Normandy, today a region in northern France. He emerged as the outstanding warrior among the Norsemen who had se ...

. His sister was

Adelaide Adelaide ( ) is the capital city of South Australia, the state's largest city and the fifth-most populous city in Australia. "Adelaide" may refer to either Greater Adelaide (including the Adelaide Hills) or the Adelaide city centre. The dem ...

, wife of

Hugh Capet Hugh Capet (; french: Hugues Capet ; c. 939 – 14 October 996) was the King of the Franks from 987 to 996. He is the founder and first king from the House of Capet. The son of the powerful duke Hugh the Great and his wife Hedwige of Saxony, ...

, the king against whom William later battled for his duchy. His early reign was characterised by many wars. He fought frequently against the

counts of Anjou The Count of Anjou was the ruler of the County of Anjou, first granted by Charles the Bald in the 9th century to Robert the Strong. Ingelger and his son, Fulk the Red, were viscounts until Fulk assumed the title of Count of Anjou. The Robertians ...

, the first time against Geoffrey Greymantle, who had taken

Loudun Loudun (; ; Poitevin dialect, Poitevin: ''Loudin'') is a Communes of France, commune in the Vienne Departments of France, department and the Regions of France, region of Nouvelle-Aquitaine, western France. It is located south of the town of Chin ...

. In 988, he went to war with the newly elected

king of France France was ruled by monarchs from the establishment of the Kingdom of West Francia in 843 until the end of the Second French Empire in 1870, with several interruptions. Classical French historiography usually regards Clovis I () as the first ...

, Hugh Capet, whom he refused to recognise. Capet had been granted Aquitaine by King Lothair before the latter had been reconciled to William's father. Capet renewed his claim on the great duchy and invaded it that year. A royal army was defeated on the plain of the Loire Valley. William sheltered the young

Louis Louis may refer to: * Louis (coin) * Louis (given name), origin and several individuals with this name * Louis (surname) * Louis (singer), Serbian singer * HMS ''Louis'', two ships of the Royal Navy See also Derived or associated terms * Lewis ( ...

, the son of

Charles, Duke of Lower Lorraine Charles (953 – 22 June 992×995) was the Duke of Lower Lorraine from 977 until his death. Life Born at Reims in the summer of 953, Charles was the son of Louis IV of France and Gerberga of Saxony and the younger brother of King Lothair. He wa ...

, the last legitimate

Carolingian The Carolingian dynasty (; known variously as the Carlovingians, Carolingus, Carolings, Karolinger or Karlings) was a Frankish noble family named after Charlemagne, grandson of mayor Charles Martel and a descendant of the Arnulfing and Pippin ...

heir. He opened the

palace of Poitiers The palace of the Counts of Poitou/Dukes of Aquitaine in Poitiers in Poitou in western France is a medieval testimony of the Plantagenet style of architecture. Until 2019, this building was used as a courthouse. Origin The former Merovingian ...

to him and treated him as royalty, regarding him as the true heir to the

French throne France was ruled by Monarch, monarchs from the establishment of the West Francia, Kingdom of West Francia in 843 until the end of the Second French Empire in 1870, with several interruptions. Classical French historiography usually regards Cl ...

. In 968, he married Emma or Emmeline,Bernard S. Bachrach, ''Fulk Nerra, the Neo-Roman Consul, 987-1040'', (University of California Press, 1993), 268. daughter of

Theobald I of Blois Theobald I (913–975), called the Trickster (known as ''le Tricheur'' –meaning “cheater”– in French), was first Viscount of Blois and Viscount of Tours, and then from 956, Count of Blois, Chartres and Châteaudun, as well as Count of To ...

and

Luitgarde of Vermandois Luitgarde of Vermandois ( – 9 February 978) was a French noblewoman. She was a countess of Vermandois by birth and a duchess consort of Normandy by her first marriage, and a countess consort of Blois by her second. She was a daughter of H ...

. Their marriage was stormy, in part because of William's indulgence in the pursuit of women and, as a hunting aficionado, wild animals. She banished his paramours, they separated twice for long periods, and finally he retired to a monastery, as his father had done, leaving Emma to rule Aquitaine in the name of their son

William William is a male given name of Germanic origin.Hanks, Hardcastle and Hodges, ''Oxford Dictionary of First Names'', Oxford University Press, 2nd edition, , p. 276. It became very popular in the English language after the Norman conquest of Engl ...

until 1004. Their second son, Ebles, died sometime after 997.

Notes

Sources

*Owen, D. D. R. ''Eleanor of Aquitaine, Queen and Legend''. 1993. *''Nouvelle Biographie Générale''. Paris, 1859.