Olaf Cuarán Sitricsson
- Born: Abt 920
- Marriage (1): Donnflaith Princess of Scotland in 937 in Scotland
- Marriage (2): Gormflaeth ingen Murchada MacFinn about 945
- Died: 981, Iona, Argyllshire, Scotland about age 61
Olaf Sihtricson or Olaf Kvaaran of Dublin (King of York & Iona).
Named (in sagas) Olaf the Red, or Olaf Cuaran, Olaf also spelled
Anlaf, king of the Danish kingdoms of Northumbria and of Dublin.
He was the son of Sihtric, king of Deira, and was related to the
English king Aethelstan. When Sihtric died about 927 Aethelstan
annexed Deira, and Olaf took refuge in Scotland and in Ireland until
937, when he was one of the leaders of the formidable league of
princes that was destroyed by Aethelstan at the famous Battle of
Brunanburh. Again he sought a home among his kinsfolk in Ireland, but
just after Aethelstan's death in 940 he or Olaf Guthfrithson was
recalled to England by the Northumbrians. Both crossed over, and in
941 the new English king, Edmund, gave up Deira to the former. The
peace between the English and Danes did not, however, last long.
Wulfstan, archbishop of York, sided with Olaf; but in 944 Olaf was
driven from Northumbria by Edmund, and crossing to Ireland, Olaf ruled
over the Danish kingdom of Dublin. From 949 to 952 he was again king
of Northumbria, until he was expelled once more (this time by Erik
Bloodaxe), and he passed the remainder of his active life in warfare
in Ireland. But in 980 his dominion was shattered by the defeat of the
Danes at the Battle of Tara. He went to Iona, where he died probably
in 981, although one dubious account says he was in Dublin in 994.
Olaf married Donnflaith Princess of Scotland, daughter of Constantine II King Of Scotland and Unknown, in 937 in Scotland. (Donnflaith Princess of Scotland was born about 925 in Scotland.)
Olaf next married Gormflaeth ingen Murchada MacFinn about 945. (Gormflaeth ingen Murchada MacFinn was born about 930.)