Notes:

Of Wark, Northumberland.

Robert — Margaret de Brus. Margaret (daughter of Peter de Brus and Hawise) died Bef 30 Jan 1306/07. [Group Sheet]

1. Robert de Roos
2. William de Roos died Bef 12 Mar 1309/10.

Notes:

Of Wark, Northumberland.

Robert — Christian Bertram. [Group Sheet]

Notes:

Sir Robert de Ros, or de Roos of Helmsley, was the grandfather and ancestor of the Barons Ros of Helmsley that was created by writ in 1264. In 1215, Ros joined the confederation of the barons at Stamford. He was one of the twenty-five barons to guarantee the observance of the Magna Carta, signed by King John on 15 Jun 1215.

He was the son of Everard de Ros, Baron of Helmsley and Roese Trussebut, daughter of William Trussebut of Warter. In 1191, aged fourteen, he paid a thousand marks fine for livery of his lands to King Richard I of England. In 1197, while serving King Richard in Normandy, he was arrested for an unspecified offence, and was committed to the custody of Hugh de Chaumont, but Chaumont entrusted his prisoner to William de Spiney, who allowed him to escape from the castle of Bonville, England. King Richard thereupon hanged Spiney and collected a fine of twelve hundred marks from Ros' guardian as the price of his continued freedom.

When King John came to the throne, he gave Ros the barony of his great-grandmother's father, Walter d'Espec. Soon afterwards he was deputed one of those to escort William the Lion, his father-in-law, into England, to swear fealty to King John. Some years later, Robert de Ros assumed the habit of a monk, whereupon the custody of all his lands and Castle Werke (Wark), in Northumberland, were committed to Philip d'Ulcote, but he soon returned and about a year later he was High Sheriff of Cumberland.

When the struggle of the barons for a constitutional government began, de Ros at first sided with King John, and thus obtained some valuable grants from the crown, and was made governor of Carlisle; but he subsequently went over to the barons and became one of the celebrated twenty-five "Sureties" appointed to enforce the observance of Magna Carta, the county of Northumberland being placed under his supervision. He gave his allegiance to King Henry III and, in 1217-18, his manors were restored to him. Although he was witness to the second Great Charter and the Forest Charter, of 1224, he seems to have remained in royal favour.

In early 1191, in Haddington, East Lothian, Scotland, Ros married Isabella Mac William (Isibéal nic Uilliam), widow of Robert III de Brus. Isabella was the illegitimate daughter of William the Lion, King of Scots by the daughter of Richard Avenel.

Issue with Isabella:

Sir William de Ros (b. before 1200 - d. ca. 1264/1265), father of Robert de Ros, 1st Baron de Ros.
Sir Robert de Ros (ca. 1223 - 13 May 1285), was Chief Justice of the Kings Bench. He married Christian Bertram; from which Elizabeth Ros (d.1395), wife of William Parr of Kendal (1350 - c.1404) descended. The two were ancestors of Queen consort Catherine Parr.
Sir Alexander de Ros (d. ca. 1306), he fathered one child with an unknown wife, William.
Peter de Ros

He erected Helmsley or Hamlake Castle in Yorkshire, and of Wark Castle in Northumberland. Sir Robert is buried at the Temple Church under a magnificent tomb.

Robert married Isabel of Scotland 1191, Haddington, East Lothian, Scotland. Isabel (daughter of William I 'the Lion', King of Scotland and Avice de Avenel) was born Abt 1170. [Group Sheet]

Notes:

Isabel Mac William (Isibéal nic Uilliam) (born ca. 1170), married firstly in 1183 Robert III de Brus (died ca. 1191) and married secondly Sir Robert de Ros, of Helmsley.

Notes:

Everard de Ros was the lord of Hamlake and seems to have been very wealthy, as in 1176 he paid the then large sum of five hundred and twenty-six pounds as a fine for his lands, and other large amounts subsequently. He was the son of Robert de Ros and Sybil de Valoines. Everard de Ros married Rose Trusbut. They had a child, Robert de Ros, a Magna Carta surety.

Everard — Roese Trussebut. [Group Sheet]

Notes:

He married Ermengarde de Beaumont, daughter of Richard I de Beaumont, Vicomte de Beaumont and Luce de l'Aigle, on 5 September 1186 at Woodstock Palace, Woodstock, Oxfordshire, England.

He gained the title of Earl of Huntingdon. He succeeded to the title of Earl of Northumberland on 12 June 1152. He abdicated as Earl of Northumberland in 1157. He succeeded to the title of King William I of Scotland on 9 December 1165. He was crowned King of Scotland on 24 December 1165 at Scone Abbey, Scone, Perthshire, Scotland.

He succeeded his older brother, Malcolm IV. William fought to regain Northumberland from England, beginning the 'Auld Alliance' with France, but was captured at Alnwick and forced to acknowledge Henry II as Scotland's overlord in 1174.. He bought back Scotland's sovereignty from Richard I for #6600 (1189) towards the Third Crusade and in 1192 won long-canvased papel recognition of the Scotish Church's independence under Rome. His reign of almost 49 years was the longest in Scottish history. A strong and popular king. He was buried at Tironensian Abbey, Arbroath. Succeeded by his son, Alexander II.

William the Lion (Mediaeval Gaelic: Uilliam mac Eanric; Modern Gaelic: Uilleam mac Eanraig), sometimes styled William I, also known by the nickname Garbh, "the Rough", reigned as King of the Scots from 1165 to 1214. His reign was the second longest in Scottish history before the Act of Union with England in 1707, (James VI's was the longest 1567-1625). He became King following his brother Malcolm IV's death on 9 December 1165 and was crowned on 24 December 1165.

In contrast to his deeply religious, frail brother, William was powerfully built, redheaded, and headstrong. He was an effective monarch whose reign was marred by his ill-fated attempts to regain control of Northumbria from the Normans.

Traditionally, William is credited with founding Arbroath Abbey, the site of the later Declaration of Arbroath.

He was not known as "The Lion" during his own lifetime, and the title did not relate to his tenacious character or his military prowess. It was attached to him because of his flag or standard, a red lion rampant (with a forked tail) on a yellow background. This (with the addition of a 'double tressure fleury counter-fleury' border) went on to become the Royal standard of Scotland, still used today but quartered with those of England and of Ireland. It became attached to him because the chronicler Fordun called him the "Lion of Justice".

William also inherited the title of Earl of Northumbria in 1152. However he had to give up this title to King Henry II of England in 1157. This caused trouble after William became king, since he spent a lot of effort trying to regain Northumbria.

William was a key player in the Revolt of 1173-1174 against Henry II. In 1174, at the Battle of Alnwick, during a raid in support of the revolt, William recklessly charged the English troops himself, shouting, "Now we shall see which of us are good knights!" He was unhorsed and captured by Henry's troops led by Ranulf de Glanvill and taken in chains to Newcastle, then Northampton, and then transferred to Falaise in Normandy. Henry then sent an army to Scotland and occupied it. As ransom and to regain his kingdom, William had to acknowledge Henry as his feudal superior and agree to pay for the cost of the English army's occupation of Scotland by taxing the Scots. The church of Scotland was also subjected to that of England. This he did by signing the Treaty of Falaise. He was then allowed to return to Scotland. In 1175 he swore fealty to Henry II at York Castle.

The humiliation of the Treaty of Falaise triggered a revolt in Galloway which lasted until 1186, and prompted construction of a castle at Dumfries. In 1179, meanwhile, William and his brother David personally led a force northwards into Easter Ross, establishing two further castles, and aiming to discourage the Norse Earls of Orkney from expanding beyond Caithness.

A further rising in 1181 involved Donald Meic Uilleim, direct descendant of King Duncan II of Scots. Donald briefly took over Ross; not until his death (1187) was William able to reclaim Donald's stronghold of Inverness. Further royal expeditions were required in 1197 and 1202 to fully neutralise the Orcadian threat.

The Treaty of Falaise remained in force for the next fifteen years. Then Richard the Lionheart, needing money to take part in the Third Crusade, agreed to terminate it in return for 10,000 silver marks, on 5 December 1189.

Despite the Scots regaining their independence, Anglo-Scottish relations remained tense during the first decade of the 13th century. In August 1209 King John decided to flex the English muscles by marching a large army to Norham (near Berwick), in order to exploit the flagging leadership of the ageing Scottish monarch. As well as promising a large sum of money, the ailing William agreed to his elder daughters marrying English nobles and, when the treaty was renewed in 1212, John apparently gained the hand of William's only surviving legitimate son, and heir, Alexander, for his eldest daughter, Joan.

Despite continued dependence on English goodwill, William's reign showed much achievement. He threw himself into government with energy and religiously followed the lines laid down by his grandfather, David I. Anglo-French settlements and feudalization were extended, new burghs founded, criminal law clarified, the responsibilities of justices and sheriffs widened, and trade grew. Arbroath Abbey was founded (1178), and the bishopric of Argyll established (c.1192) in the same year as papal confirmation of the Scottish church by Pope Celestine III.

William is recorded in 1206 as having cured a case of scrofula by his touching and blessing a child with the ailment whilst at York. William died in Stirling in 1214 and lies buried in Arbroath Abbey. His son, Alexander II, succeeded him as king, reigning from 1214 to 1250.

Marriage and issue

Due to the terms of the Treaty of Falaise, Henry II had the right to choose William's bride. As a result, William married Ermengarde de Beaumont, a granddaughter of King Henry I of England, at Woodstock Palace in 1186. Edinburgh Castle was her dowry. The marriage was not very successful, and it was many years before she bore him an heir. William and Ermengarde's children were:

Margaret (1193-1259), married Hubert de Burgh, 1st Earl of Kent.
Isabel (1195-1253), married Roger Bigod, 4th Earl of Norfolk.
Alexander II of Scotland (1198-1249).
Marjorie (1209-44),[3] married Gilbert Marshal, 4th Earl of Pembroke.

Out of wedlock, William I had numerous children, their descendants being among those who would lay claim to the Scottish crown.

By Avice de Avenel, daughter of Robert de Avenel, Justiciar of Lothian:
Isabel Mac William (Isibéal nic Uilliam) (born ca. 1170), married firstly in 1183 Robert III de Brus (died ca. 1191) and married secondly Sir Robert de Ros, of Helmsley (died 1226)

By an unnamed daughter of Adam de Hythus:
Magaret, married Eustace de Vesci Lord of Alnwick

By unknown mothers:
Robert de London[6]
Henry de Galightly, father of Patrick Galightly one of the competitors to the crown in 1291[7]
Ada (died 1200), married Patrick I, Earl of Dunbar (1152-1232)[7]
Aufrica, married William de Say, and whose grandson Roger de Mandeville was one of the competitors to the crown in 1291[7]

William — Avice de Avenel. [Group Sheet]