Marmaduke de Thweng, Master of Kilton

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Marmaduke de Thweng, Master of Kilton

Birthplace: Kilton Castle, Cleveland, North Riding of Yorkshire, England (United Kingdom)
Death: September 11, 1297 (19-28)
Stirling, Stirling, Scotland (United Kingdom) (Killed in action, Battle of Stirling Bridge )
Immediate Family:

Son of Marmaduke Thweng, 1st Baron Thweng and Isabel de Ros
Partner of Lucia de Thweng, heiress of Bozeat
Brother of Lucia de Lumley; Margaret de Thweng; Sir Thomas de Thweng, Knight, Forrester of Wyerdale; Katharine de Thweng; Sir William de Thweng and 1 other
Half brother of Walter de Fauconberg and Sir John de Faucomberge, 3rd Lord Fauconberge

Managed by: Erica Howton
Last Updated:

About Marmaduke de Thweng, Master of Kilton

Marmaduke de THWENG , Master of Kilton, son of Marmaduke Thweng and Isabel de Ros. Born in Kilton Castle, Cleveland, Yorkshire, England; died 11 SEP 1297 in Battle of Stirling, Scotland (dsp & vp) 1

Note: MARMADUKE DE THWENG, 1st son and heir apparent, was killed at Stirling, 11 September 1297. [Complete Peerage XII/1:741, (transcribed by Dave Utzinger)]

From “The Thweng Family c.1223 to c.1323” Dissertation by Simon Ross link

Robert’s daughter Lucy is almost worthy of an essay in her own right. Marmaduke had inherited the Thweng lands upon the death of his father, valued at seven knight’s fees, and by 1271 he held sixteen and a half fees. Around this time he gave Kilton Castle to his son Robert and took up residence at Danby, some six miles to the south of the traditional family home. The move to a more comfortable, less protected residence reflects the relative peace in the kingdom after the years of turmoil that had gone before. When her father died, Marmaduke arranged for Robert’s fiefs at Kilton, Thwing and Lund to go to his second son, also called Marmaduke, whilst Lucy retained the land given to Marmaduke as part of the partition of the de Brus land. This made Lucy an extremely eligible woman.

She was only around four or five years of age at the time of her father’s death and naturally became the ward of Edward I, who gave custody to the younger Marmaduke. Lucy spent her childhood at Kilton and aged fifteen was given in marriage to William le Latimer the Younger, whose family had close connections to the King. Marmaduke opposed such a move as he wanted Lucy to marry his eldest son and thus keep the de Brus land in the family. However, Edward obviously had a great deal of influence over this marriage and encouraged by William le Latimer the Elder, who stood to gain vast tracts of land, the wedding went ahead in August 1294. Lucy strongly disliked her husband, and he distrusted her, and within a year of marriage she had left his home and returned to Kilton as the mistress of her cousin, Marmaduke, her former custodian. However, this relationship failed to last. When Marmaduke was away fighting in Scotland c.1304, Lucy fled Kilton and became the mistress of the young Peter de Mauley, who was approximately eighteen years of age at the time, compared to Lucy’s twenty-five



Children of Marmaduke Thweng and Lucy de Brus:

  • i. Robert de Thweng (23640590), born ~1245 in England.
  • ii. Marmaduke de Thwenge, born ? in England. Marmaduke married Isabel, d/o Robert de Roos & Isabella d’Aubigny. Bef. 6/28/1284, Marmaduke was assigned custody of his niece Lucy, daughter of his deceased brother Robert. ... 1308, Marmaduke died seized of a fourth of the barony of Kendal; his son William his successor


The rise of the Thweng family had begun in the early thirteenth century and had reached an apex in 1307 with the summoning of Marmaduke to parliament. Certain events such as the anti-papal riots of 1231 and 1232, the baronial rebellion in 1258-65, and the wars in Scotland at the end of the thirteenth century undoubtedly helped the Thweng’s achieve their status. But above all, the real determining factor in the rise of the family was a seemingly inherited sense of duty. Robert, in his dispute with the pope, and the two Marmadukes and their respective battles against the barons and the Scots, were fighting for what they believed to be best for England. They also showed remarkable courage. To stand up to the papacy was something that even the King of England was not prepared to do for fear of spiritual retribution. At the Battle of Stirling Bridge and the siege of Stirling Castle, Marmaduke showed the bravery, leadership and military prowess that earned him recognition from many contemporary chroniclers. The move towards a ‘parliamentary barony’ transformed a barony dominated by the richest magnates and allowed less wealthy, but undoubtedly more deserving men like Marmaduke to be rewarded for their service, loyalty and commitment.


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Marmaduke de Thweng, Master of Kilton's Timeline

Cleveland, North Riding of Yorkshire, England
September 11, 1297
Age 24
Stirling, Stirling, Scotland