William I de Ros , MP, Lord of Helmsley, Sir 
William I de was born about 1196 in Helmsley Castle, North Ride Yorkshire, England. William I de's father was Robert de Ros , Lord of Helmsley, Sir Knight and his mother was Isabel of Scotland. His paternal grandparents were Everard de Ros , Lord of Helmsley, Sir and Roese de Trussebut; his maternal grandparents were William The Lion King of Scotland and Isabel Avenal. He had a brother named Robert de. He was the older of the two children. He died in 1264 in Poitou, France.General Notes
William de Ros, of Hamlake, upon giving security for the payment of £100 for his relief, had livery of his lands. This feudal lord, in the lifetime of his father, was an active supporter of the baronial cause and was made prisoner at the battle of Lincoln (1st Henry III) [1216] by the royalists but soon after released and delivered up to his father upon bail. He was subsequently engaged in the wars of Gascony and he had two military summonses in the 42nd Henry III [1258] to march against the Scots and Welsh. By the deaths of his two great aunts, the sisters of his grandmother, Rose Trusbut, s. p., he became sole heir of the baronial estate of Trusbut and Watre. He m. Lucia, dau. of Reginald Fitz-Piers, of Blewleveny, in Wales, and d. in 1258. He was s. by his son, Robert de Ros. [Sir Bernard Burke, Dormant and Extinct Peerages, Burke's Peerage Ltd, London, England, 1883, p. 458, Ros, or Roos, Baron Ros]
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Ancestor Pedigree Chart
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- b.1087 in Ros, Holderness, East Ride Yorkshire, England d.< 1153
- b.~ 1117 in Ros, Holderness, East Ride Yorkshire, England d.< 1163 in Helmesley Castle, North Ride Yorkshire, England
- b.1066 in Helmesley Castle, North Ride Yorkshire, England
- b.~ 1091 in Helmesley Castle, North Ride Yorkshire, England
- b.~ 1147 in Helmsley Castle, North Ride Yorkshire, England d.1183
- b.~ 1080 in Valognes, Contentin, France
- b.~ 1109 in England d.11 May 1175 in Panmure, Forfar, Scotland
- b.1080 in England
- b.~ 1125 in Panmure, Forfar, Scotland d.> 1212 in Appleton Priory, Yorkshire, England
- b.~ 1167 in Ros, Holderness, East Ride Yorkshire, England d.<23 Dec 1226 in Helmsley Castle, North Ride Yorkshire, England
- b.~ 1091 in Warter, Holderness, Yorkshire, England d.> 1138 in Ingmanthorpe, Kirk Deighton, Yorkshire, England
- b.~ 1121 in Warter, Yorkshire, England d. in Honsingore, Yorkshire, England
- b.~ 1091 in England
- b.~ 1149 in Ingmanthorpe, Kirk Deighton, Yorkshire, England
- b.~ 1070 in Newton Harcourt, Leicestershire, England
- b.~ 1100 in Shenton, Leicestershire, England
- b.~ 1077 in Bramber Castle, Sussex, England
- b.~ 1130 in Shenton, Leicestershire, England d.1205 in Warter, Holderness, Yorkshire, England
- b.~ 1060 in Normandy, France d. in Brunne, Cambridgeshire, England
- b.~ 1100 in Brunne, Cambridgeshire, England d.1185
- b.~ 1196 in Helmsley Castle, North Ride Yorkshire, England d.1264 in Poitou, France
- b.1031 in Atholl, Perthshire, Scotland d.13 Nov 1093 in Alnwick Castle, Northumbria, England (slain besieging)
- b.~ 1080 in Scotland d.24 May 1153 in Carlisle, Cumberland, England
- b.1045 in Hungary d.16 Nov 1093 in Edinburgh Castle, Scotland
- b.1114 in Scotland d.12 Jun 1152 in Huntingdon, Huntingdonshire, England
- b.~ 1036 in Northumberland, England d.31 May 1076 in Beheaded at Winchester, Hampshire, England
- b.1072 in Huntington, Huntingdonshire, England d.23 Apr 1131 in Scotland
- b.1054 in Lens, Artois, France d.> 1086
- b.1143 in Huntingdon, Huntingdonshire, England d.04 Dec 1214 in Stirling Castle, Stirlingshire, England
- b.< 1037 in Varenne near Bellencombre, Seine-Inferieure, Normandy, France d.24 Jun 1088 in Lewes, Sussex, England (from wounds at Siege of Pevensey)
- b.~ 1071 in Lewes, Sussex, England d.11 May 1138 in Priory of Lewes, Sussex, England
- b.~ 1052 in Flanders, France d.27 May 1085 in Castle Acre, Norfolk, England (in childbirth)
- b.~ 1122 in Lewes, Sussex, England d.1178 in Huntingdon, Huntingdonshire, England
- b.1050 in Vermandois, Normandy, France d.18 Oct 1101 in The leader of 1st Crusade died at Tarsus, Cilicie
- b.~ 1081 in Valois now Oise, Picardy, France d.<Jul 1147 in Priory of Lewes, Sussex, England
- b.~ 1050 in Valois now Oise, Picardy, France d.23 Sep 1120 in Vermandois, Normandy, France
- b.~ 1165 in Huntingdon, Huntingdonshire, England
- b.~ 1080 in Normandy, France d.> 1130
- b.~ 1117 in Sandhurst, Gloucestershire, England d.> 1180 in Edinburgh, Midlothian, Scotland
- b.~ 1143 in Edinburgh, Midlothian, Scotland d.~ 1185 in Stirling Castle, Stirlingshire, England
- b.~ 1120 in England
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Children
Lucy de Ros
Lucy de was born about 1225 in Helmsley Castle, North Ride Yorkshire, England. She died after 1279 in Grey Friars, York, Yorkshire, England.
Robert IV "1st Baron" de Ros , of Belvoir, MP
Robert IV "1st Baron" de was born in 1233 in Helmsley Castle, North Ride Yorkshire, England. He died at the age of 52 on May 17th, 1285 in Belvoir Castle, Leicestershire, England.
William II de Ros , of Ingmanthorpe, Sir
William II de was born about 1240 in Ingmanthorpe, Kirk Deighton, Yorkshire, England. He died before May 28th, 1310 in Grey Friars, York, Yorkshire, England.
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