Alexander de Abernethy was a Scottish baron. He was a son of Hugh de Abernethy and Maria de Ergadia. Alexander was a descendant of abbots of Abernethy; his great-grandfather Laurence, great-grandson of Gillemichael, Earl of Fife, was the first to style himself Lord (dominus) His daughter Margaret married John Stewart of Bonkyll, the new Scottish earl of Angus.
- Citizenship
- Kingdom of Scotland
- Born
- 1271
- Died
- 1315
