William the Conqueror spouse Matilda of Flanders
One factor in William's favour was his marriage to Matilda of Flanders, the daughter of Count Baldwin V of Flanders. The union was arranged in 1049, but Pope Leo IX forbade the marriage at the Council of Rheims in October 1049. The marriage nevertheless went ahead some time in the early 1050s, possibly unsanctioned by the pope. According to a late source not generally considered to be reliable, papal sanction was not secured until 1059, but as papal-Norman relations in the 1050s were generally good, and Norman clergy were able to visit Rome in 1050 without incident, it was probably secured earlier. Papal sanction of the marriage appears to have required the founding of two monasteries in Caen – one by William and one by Matilda. The marriage was important in bolstering William's status, as Flanders was one of the more powerful French territories, with ties to the French royal house and to the German emperors. Contemporary writers considered the marriage, which produced four sons and five or six daughters, to be a success.Administration
After 1066, William did not attempt to integrate his separate domains into one unified realm with one set of laws. His seal from after 1066, of which six impressions still survive, was made for him after he conquered England and stressed his role as king, while separately mentioning his role as duke. When in Normandy, William acknowledged that he owed fealty to the French king, but in England no such acknowledgement was made – further evidence that the various parts of William's lands were considered separate. The administrative machinery of Normandy, England, and Maine continued to exist separate from the other lands, with each one retaining its own forms. For example, England continued the use of writs, which were not known on the continent. Also, the charters and documents produced for the government in Normandy differed in formulas from those produced in England.William took over an English government that was more complex than the Norman system. England was divided into shires or counties, which were further divided into either hundreds or wapentakes. Each shire was administered by a royal official called a sheriff, who roughly had the same status as a Norman viscount. A sheriff was responsible for royal justice and collecting royal revenue. To oversee his expanded domain, William was forced to travel even more than he had as duke. He crossed back and forth between the continent and England at least 19 times between 1067 and his death. William spent most of his time in England between the Battle of Hastings and 1072, and after that, he spent the majority of his time in Normandy. Government was still centred on William's household; when he was in one part of his realms, decisions would be made for other parts of his domains and transmitted through a communication system that made use of letters and other documents. William also appointed deputies who could make decisions while he was absent, especially if the absence was expected to be lengthy. Usually, this was a member of William's close family – frequently his half-brother Odo or his wife Matilda. Sometimes deputies were appointed to deal with specific issues.William continued the collection of Danegeld, a land tax. This was an advantage for William, as it was the only universal tax collected by western European rulers during this period. It was an annual tax based on the value of landholdings, and it could be collected at differing rates. Most years saw the rate of two shillings per hide, but in crises, it could be increased to as much as six shillings per hide. Coinage across his domains continued to be minted in different cycles and styles. English coins were generally of high silver content, with high artistic standards, and were required to be re-minted every three years. Norman coins had a much lower silver content, were often of poor artistic quality, and were rarely re-minted. Also, in England, no other coinage was allowed, while on the continent other coinage was considered legal tender. Nor is there evidence that many English pennies were circulating in Normandy, which shows little attempt to integrate the monetary systems of England and Normandy.Besides taxation, William's large landholdings throughout England strengthened his rule. As King Edward's heir, he controlled all of the former royal lands. He also retained control of much of the lands of Harold and his family, which made the king the largest secular landowner in England by a wide margin.Family and children
William and his wife Matilda had at least nine children. The birth order of the sons is clear, but no source gives the relative order of birth of the daughters.
Robert was born between 1051 and 1054, died on 10 February 1134. Duke of Normandy, married Sybilla, daughter of Geoffrey, Count of Conversano.
Richard was born before 1056, died around 1075.
William was born between 1056 and 1060, died on 2 August 1100. King of England, killed in the New Forest.
Henry was born in late 1068, and died on 1 December 1135. King of England, married Edith, daughter of Malcolm III of Scotland. His second wife was Adeliza of Louvain.
Adeliza (or Adelida, Adelaide) died before 1113, reportedly betrothed to Harold Godwinson, probably a nun of Saint Léger at Préaux.
Cecilia (or Cecily) was born before 1066, died 1127, Abbess of Holy Trinity, Caen.
Matilda was born around 1061, died perhaps about 1086. Mentioned in Domesday Book as a daughter of William.
Constance died 1090, married Alan IV, Duke of Brittany.
Adela died 1137, married Stephen, Count of Blois.
(Possibly) Agatha, the betrothed of Alfonso VI of León and Castile.There is no evidence of any illegitimate children born to William.
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