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

father:
*Richard Comyn Lord of Tynedale Justiciar of Scotland
born about 1115 Northallerton, Scotland
died about 1176 Altyre, Moray, Scotland

mother:
*Hextilda FitzUchtred of Tynedale
died after 1189

siblings:
unknown

spouse (1st):
*Sarah Fitzhugh
died after 1204

children (from 1st marriage):
*Walter Comyn born about 1180 Buchan, Aberdeenshire, Scotland
Richard Comyn born about 1190 Buchan, Aberdeenshire, Scotland died 1244

spouse (2nd):
*Margaret Colhan Heiress of Buchan
died about 1242/44

children (from 2nd marriage):
*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
*Alexander Comyn Earl of Buchan born about 1217 Buchan, Aberdeen, Scotland died 6 April 1290

biographical and/or anecdotal:

notes or source:
LDS
ancestry.com