General Notes

Sir Robert de Ros, of Belvoir, summoned 24 Dec 1264 to "a Parliament" convened by Simon de Montfort, an event which prompted the legal decision of 1616 (also accepted 1806) assigning precedence in the barony of de Ros of Helmsley to 1264, although the "Parliament" in question was convoked not by the King but by a noble in opposition to him; by subsequent evolutions in peerage law doctrine no sitting in what can only be termed a council of that date could be held to confer peerage; Chief Commissioner to investigate excesses in Herefs 1258; sided with Simon de Montfort in the Barons' War, surrendering Northampton to Henry III April 1264 and Gloucester to Prince Edward (later Edward I) June 1265; pardoned 14 Aug 1265 for his opposition to Henry III; Commissioner in North of England 1268 to ensure Aid (a tax) was yielded up to the King.  [Burke's Peerage]

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Sir Robert de Ros, lord of Helmsley, co. York, and Belvoir, co. Leicester, MP 1261 & 1265, d. 17 May 1285.  [Magna Charta Sureties]

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Sir Robert de Ros, of Helmsley and Belvoir, co. Leicester, MP 1261, 1265, d. 17 May 1285; m. bef. 17 May 1246 Isabel d'Aubigny, d. 15 June 1301, of Belvoir Castle, daughter of William d'Aubigny of Belvoir and Isabel, and granddaughter of William d'Aubigny, d. 1236, Lord of Belvoir Castle, Magna Charta Surety 1215.  [Ancestral Roots]

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Robert de Ros m. in the lifetime of his father, Isabel, dau. and heiress of William de Albini, feudal lord of Belvoir, in Leicestershire, by whom he acquired Belvoir Castle, co. Lincoln, and other extensive landed possessions. This great heiress was in ward to the king and a mandate upon her marriage, bearing date at Windsor, 17 May, 1244, was directed to Bernard de Savoy and Hugh Giffard, to deliver her to her husband, the said Robert: "but not," says Dugdale, "without a round composition, for it appears that both he and his wife, in the 32nd Henry III [1248], were debtors to the king in no less than the sum of £3,285 13s. 4d., and a palfrey; of which sum the king was then pleased to accept by 200 marks a year until it should all be paid." In the 42nd of the same reign [1258], he had two military summonses with his father to march against the Scotch and Welsh--but afterward rearing, with the other barons, the standard of revolt, he had a chief command at the battle of Lewes, so disastrous to the royalists; and to his custody in the castle of Hereford was especially committed the person of Prince Edward. He was at the same time summoned 24 December, 1264, as Baron de Ros, to the parliament then called in the king's name by the victorious lords. But the fortune of war changing at the subsequent battle of Evesham, his lands were all seized by the crown and held until redeemed by his lordship under the Dictum of Kenilworth. In two years after this he must, however, have regained somewhat of royal favour for he had then permission to raise a new embattled wall around the castle of Belvoir. He d. 16 June, 1285, leaving issue by the heiress of Belvoir, William, his successor;

Robert (Sir), knighted 1296; and Isabel, m. to Walter de Fauconberge. His lordship was s. by his elder son, William de Ros, 2nd Baron. [Sir Bernard Burke, Dormant, Abeyant, Forfeited and Extinct Peerages, Burke's Peerage, London, 1883, p. 458, Ros, or Roos, Barons Ros]