1. Sybilla of Northumbria, daughter of Earl Siward DIGERA ( - ) and Elfleda ( - ), married Duncan I KING OF SCOTLAND.

Duncan I KING OF SCOTLAND, son of Crinan (Grimus) MORMAER OF ATHOLL (c. 975-c. 1045) and Bethoc (Beatrix) of Scotland ( - ), was born circa 1001. He died on [Julian] 14 August 1040 in Bothnagowan nr. Elgin. He and Sybilla of Northumbria had the following children:

2. Malcolm III KING OF SCOTLAND, son of Duncan I KING OF SCOTLAND and Sybilla of Northumbria, was born circa 1031. He died on [Julian] 13 November 1093. He married Saint Margaret "the Exile".

Malcolm III 'Caennmor', King of Scotland was the son of Duncan I 'the Gracious', King of Scotland and Sybilla of Northumbria. He was born circa 1031.1 He married, firstly, Ingibiorg 'Earl's Mother' Finnsdottir, daughter of Finn Arnasson, Jarl of Halland and Bergljot, between 1059 and 1066. He married, secondly, Saint Margaret 'the Exile', daughter of Edward 'Atheling' and Agatha, in 1069 at Dunfermline Abbey, Dunfermline, Fife, Scotland. He died on 13 November 1093 at Alnwick Castle, Alnwick, Northumberland, England, killed by Arkil Morel in an ambush. He was buried at El Escorial Palace, Madrid, Spain. He was buried at Tynemouth, Tyne and Wear, England. He was buried at Dunfermline Abbey, Dunfermline, Fife.
He gained the title of Prince Malcolm of Cumbria in 1034. He gained the title of King Malcolm of Strathclyde in 1034. He succeeded to the title of King Malcolm III of Scotland on 17 March 1058.1 He was crowned King of Scotland on 25 April 1058 at Scone Abbey, Scone, Perthshire, Scotland.
He succeeded Macbeth, but was exiled to England during the reign of Macbeth. With English military help he defeated (1054 - Battle of Dunsinane) and killed (1057) Macbeth, and became King of Scotland after the death of Macbeth's stepson and successor Lulach. Five times he unsuccessfully invaded northern England, and was killed on the fifth attempt. He was effectively ruler of Strathclyde and Lothian from 1054.

Saint Margaret "the Exile", daughter of Edward KING OF ENGLAND (UNCROWNED) (1016-1057) and Agatha of Brunswick (c. 1018-1024), was born in 1045 in Hungary. She died on [Julian] 16 November 1093 in Edinburgh Castle. She and Malcolm III KING OF SCOTLAND had the following children:

5. Editha of Scotland (known as 'Matilda'), daughter of Malcolm III KING OF SCOTLAND and Saint Margaret "the Exile", was born circa 1079 in Dunfermline, Fife, Scotland. She had the title 'Queen Consort Matilda'. She married Henry I KING OF ENGLAND on [Julian] 11 November 1100. She died on [Julian] 1 May 1118 in Westminster Palace.

Sister of Edmund, Edgar and David I (The Saint) Kings of Scotland. As of 11 November 1100, her married name was Queen Consort Matilda of England.

Henry I KING OF ENGLAND, son of William I KING OF ENGLAND (c. 1027-1087) and Matilda de Flandre (1032- ), was born in [Julian] September 1068. He married Adeliza of Louvain on 2 February 1121. He died on [Julian] 1 December 1135. He was buried in Westminster Abbey. He and Editha of Scotland had the following children: