Isobel Sutherland was also known as Elizabeth in some records. Isobel Sutherland was also known as Isabella in some records. Her name "Isabell" is usually latinised "Isabella," as it is in the Papal Dispensation for her marriage, and in the inquest which records her death as " Isabella, relict of the late Sir Alexander Dunbar, of Westfield, Knight." But occasionally it is latinised "Elizabeth," as in the Latin Charter of her son, Bishop Gavin. She was born say 1434 at Duffus, Moray, Scotland and died on 11 November 1504 at Scotland. She was the daughter of Alexander Sutherland 3rd baron Duffus and Morella Chisholm.

Isobel Sutherland married Sir Alexander Dunbar, son of James Dunbar 4th Earl of Moray and Isabel Innes (Dunbar), on 6 August 1451 at the house of St Anthony's, Leith, Edinburgh, Midlothian, Scotland. His wife's seal on 12 June 1502 showed, on a shield two cushions, with a star in base.

A contract for the marriage of Isobel Sutherland and Sir Alexander Dunbar was signed on 3 January 1451/52. Papal dispensation was granted 6 August.

On 31 Jan 1498/9 an action by Elizabeth Sutherland, widow of Alexander Dunbar of Westfield, Kt. & James Dunbar of Cumnock, executor to the said Alexander, against Alexander Lord Gordon, for with holding corn etc

Children of Isobel Sutherland and Sir Alexander Dunbar

1. Sir James Dunbar+ b. a 1451, d. 20 Apr 1504
2. Sir John Dunbar (of Mochrum)+ b. c 1452, d. 1503
3. Alexander Dunbar+ b. Oct 1455, d. c 31 Mar 1498
4. Gavin Dunbar Bishop of Aberdeen b. c 1456, d. 9 Mar 1532
5. Leonard Dunbar b. s 1459
6. Isabella or Janet Dunbar (Keith) (of Innerugie)+
7. Margaret Dunbar
8. son Dunbar
9. Patrick Dunbar+ b. b 1470?, d. 8 Sep 1525
10. David Dunbar (of Durris)+ b. c 1470, d. 23 Feb 1521/22