*Alexander Comyn Earl of Buchan
born about 1217 Buchan, Aberdeen, Scotland
died 6 April 1290

father:
*William Comyn Earl of Buchan
born 1163 Altyre, Moray, Scotland
died about 1233 Buchan, Aberdeen, Scotland

mother:
*Margaret Colhan Heiress of Buchan
died about 1242/44

siblings:
*Elizabeth Comyn born about 1223 Buchan, Aberdeenshire, Scotland died 1267
Richard Comyn
*Idonea Comyn born about 1219 Altyre, Morayshire, Scotland
Fergus Comyn born about 1219 Altyre, Morayshire, Scotland
William Comyn II born about 1217 Altyre, Morayshire, Scotland
*Margaret Comyn born 1217 Scotland

spouse:
*Elizabeth de Quincy
born about 1220 Winchester, Hampshire, England
died 12 April 1282

children:
Elena Comyn born about 1247 Altyre, Morayshire, Scotland
*Elizabeth (Emma or Egidia) Comyn born about 1260 Buchan, Aberdeenshire, Scotland
died before 17 February 1327/28 Castle Prudhoe, Northumberland, England
Marjory (Bridget) Comyn born about 1263 Altyre, Morayshire, Scotland

biographical and/or anecdotal:

notes or source:
LDS
ancestry.com
"Biographical Encyclopedia of the Kings & Queens of Great Britain" by Mike Ashley