William de Beauchamp, 9th Earl of Warwick (1237-1298)

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William de Beauchamp, Earl of Warwick, was born 1237 to William de Beauchamp (1215-1268) and Isabel de Maudit (c1221-c1268) and died 1298 of unspecified causes. He married Maud FitzJohn, Countess of Warwick (c1240-1301) . Notable ancestors include Charlemagne (747-814), Hugh Capet (c940-996), Rurik (c832-879). Ancestors are from the United Kingdom, France, Germany, Belgium, Russia, Ukraine.


William de Beauchamp, 9th Earl of Warwick (1237–1298) was an English nobleman and soldier, described as a “vigorous and innovative military commander”. He was active in the field against the Welsh for many years, and at the end of his life campaigned against the Scots. He became hereditary High Sheriff of Worcestershire for life on the death of his mother in 1268.

He was a close friend of Edward I of England, and was an important leader in Edward's invasion of Wales in 1277. In 1294 he raised the siege of Conwy Castle, where the King had been penned in, crossing the estuary. He was victorious on 5 March 1295 at the battle of Maes Moydog, against the rebel prince of Wales Madog ap Llywelyn. In a night attack on the Welsh infantry, he used cavalry to drive them into compact formations, which were then shot up by his archers, and charged.

Inherits Earldom from Uncle: 1268

Sir William, the first earl of Warwick from the Beauchamp family, formally did homage for his lands on 9 February 1268. From the outset, this was unusual; whereas most sons only received their inheritance on the death of their father, it is evident that Earl William's father, William Beauchamp of Elmley, was still alive at the time when his son acceded to the earldom; the will of the elder William clearly refers to his son as the ‘earl of Warwick’, and we also have an undated charter in which the elder William Beauchamp concedes 20 librates of land to his son, ‘William, earl of Warwick’. William Beauchamp of Elmley had the right to assume the title of earl himself, as had happened in similar circumstances a generation earlier, but chose to give the title to his eldest son. Earl William had inherited his title from his uncle, William Mauduit, whose sister Isabel had married William Beauchamp of Elmley, Earl William's father. It was the union between William and Isabel which proved to be the making of the Beauchamp fortunes, changing them from a strong family of regional significance into one of the greatest English families of the later middle ages.

Family of William de Beauchamp

His father was William de Beauchamp of Elmley Castle and his mother Isabel Mauduit, sister and heiress of William Mauduit, 8th Earl of Warwick, from whom he inherited his title in 1268. He had a sister, Sarah, who married Richard Talbot.

He married Maud FitzJohn. Their children included:

  1. Isabella de Beauchamp - married firstly, Sir Patrick de Chaworth and, secondly,

Hugh le Despenser, Earl of Winchester

  1. Guy de Beauchamp, 10th Earl of Warwick (1278-1315) - 10th Earl of Warwick, who married Alice de Toeni, widow of Thomas de Leyburne


Offspring of William de Beauchamp and Maud FitzJohn, Countess of Warwick (c1240-1301)
Name Birth Death Joined with
Isabella de Beauchamp (c1263-bef1307) 1263 30 May 1306 Patrick de Chaworth (c1250-1283)
Hugh le Despenser, 1st Earl of Winchester (1261-1326)

Guy de Beauchamp, 10th Earl of Warwick (1278-1315) 1272 10 August 1315 Alice de Toeni (1284-1325)


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