Vital Statistics

• Cawley does not list Thurstan as a son of Hugues IV and Adeline de Beaumont whereas Burke's Peerage does, as the younger brother of Robert.
• According to Cawley, Robert had two sons and was succeeded by his son Hugues de Montfort which contradicts Burke.
• Hugues IV and Adeline de Beaumont married in 1120 which sets the date of birth of Thurstan after this date if they are indeed his parents.
• Dates unverified - birth dates 1118 or 1125. Died after 1170
• According to Burke Thurstan de Montfort "being enfeoffed of divers fair lordships by Henry de Newburgh, the first Earl of Warwick, erected a stony castle, called Beldesert, at the chief seat of his family, in Warwickshire.
• Married Juliana (Juliane) Murdac b. c 1125. Her father was Geoffrey Murdac. They married c 1142.
• His son and heir was Henry de Montfort b c 1145
• There is some evidence that Thurstan de Montfort of Beaudesert had a younger son Thurstan of Charlecote (see notes below)

Sources and Notes

May have had a son named Thurston. Source is Shakespeare's Warwickshire Contemporaries by Charlotte Carmichael Stopes.

"Sir Thomas Lucy came of a long line of distinguished ancestors, who had dwelt at Charlecote over 400 years, and had given commanders, councillors, sheriffs, knights of the shire, and justices of the peace repeatedly to the service of their country. Dugdale supposes Thurstan de Charlecote to have been a younger son of Thurstan de Montford, whose son and heir Henry granted to Walter the son of Thurstan of Charlecote the lordship of the village, which grant King Richard I. confirmed by letters natent at Dover 6th Dec., 1191, and John again confirmed with all the privileges therein noted in his fifth year. "From this Walter de Charlecote (who was a knight) by Cecily his wife, descended William, who assumed the surname of Lucy." This makes Dugdale think that his mother Cecily* must have been a "Lucy.""

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From http://cybergata.com/roots/3664 (Nancy Lopez):

Thurstan de Montfort, heir to his brother Robert, name appears in the account of the sheriff of Berkshire in 1130. He had succeeded his brother by the spring of 1141, when the Empress Maud at Winchester gave him a charter for a market every Sunday at his castle of Beaudesert, near Henley in Arden. He attested several charters of Roger, and one of William, Earls of Warwick, to the College of Warwick, his name coming usually after those of the Earl's immediate family. He also attested, on the Earl's side, the agreement made at Devizes in 1153 between Henry, Duke of Normandy (afterwards Henry II), and Ranulph, Earl of Chester.

In 1156 Thurstan owed the King 20 marks for his land in Rutland. In 1166 he held under three tenants in chief of the Earl of Warwick 10¼ fees (Beaudesert, &c.), of Roger de Mowbray 3¾ in Yorks, and of Robert de Stafford ¼ (Henley in Arden). After his brother's death he confirmed the grant of Wing to Thorney Abbey for the souls of himself, his wife and children, and especially of his brother Robert. He made a gift to Guisborough for the soul of his brother Henry (1155-70). His name disappears from the Pipe Roll after 1170. He married Juliane, daughter and coheir of Geoffrey Murdac.

~ Cokayne's Complete Peerage, 2nd Edition, Vol. IX, (Montfort), pp. 120-121

The ancestry of this family cannot be given any certainty. The only place in Normandy named Montfort is Montfort-sur-Risle. Miles Crispin, in his Life of William, the third abbot of Le Bec, thus describes the abbot's origin: "Willelmus, nobli Northmanorum prosapia originem trabens, in veteri castro super Rislam quid dicitur Montfortis, claris parentibus est exortus. Pater ejus Turistinus, mater Albereda dicebatur, Rogerii de Bellomonte patris Roberti comitis ex sorore neptis." At the time of the abbot's birth (circa 1054) the seigneur of Montfort was Hugh, but the language used suggests that Thurstan was a member of that family, the more so as he bore the same name as its founder, Thurstan de Bastenbourg. Roger de Beaumont was father of Henry, 1st Earl of Warwick, who would thus be Thurstan's first cousin by marriage; Montfort-sur-Risle is about 15 miles distant from Beaumont-le-Roger. The repeated occurrence of the name Thurstan among the Montforts of Beaudesert, undertenants of the Earls of Warwick, taken in conjunction with the above facts, points to somewhat strongly to the probability of their being a younger branch of the family of Montfort-sur-Risle.

~ Cokayne's Complete Peerage, 2nd Edition, Vol. IX, (Montfort), p. 120, footnote (b)

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Geoffrey Murdac had a daughter, Juliana, who married Thurstan de Montfort, to whom she brought Great Ayton and other lands in Yorkshire in dower, so that in 1166 Thurstan held 3¾ kinght's fees of Roger de Mowbray [Red Bk., 420], besides what he held of Robert de Meinil II.. Thurstan had issue, Robert and Henry, the last named being a father of another Thurstan. In Michaelmis term, 1209(?), this Thurstan demanded a moiety of the town of Langton (E.R.) against Eustace de Vescy as his right and inheritance, taking vestures thereof to the vaule of 100s. and more, to Juliana his daughter, who held that land as her reasonable share which belonged to her, and from Juliana to Robert her son, and from Robert to Henry, brother of the said Robert and father of the said Thurstan, and from him to Thurstan [R. de Fin., 346].
~Early Yorkshire Charters, Vol. II, p. 358

http://www.thepeerage.com/p32140.htm#i321391

Thurstane de Montfort lived at Beldesert, Warwickshire, England.1

Child of Thurstane de Montfort

• Thurstane de Charlecote+1

Citations

• [S50] John Burke, History of the Commoners of Great Britain (London, U.K.: n.pub., 1846), volume III, page 97. Hereinafter cited as Commoners of Great Britain.
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The Time Team show on the History channel has an episode of their dig at the site of "Beldesert Castle." You can watch on YouTube using this link: Medieval Archaeologists Solve The Mystery Of The Lost Beaudesert Castle | Time Team | Chronicle

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