William , 1St Earl Of Buchan Comyn Sir justicair
William , 1St Earl Of Buchan was born about 1170 in Altyre,Morayshire,Scotland.  He died in 1233 in Buchan,Aberdeenshire,Scotland.

 Margaret Heiress Of Buchan Countess
Margaret Heiress Of was born about 1182 in of,Buchan,Aberdeenshire,Scotland.  She died before 1244.

 Margaret Comyn
Margaret was born in 1215 in Altyre,Morayshire,Scotland.

 Alexander , 2nd Earl of Buchan Comyn
Alexander , 2nd Earl of Buchan was born about 1217 in of,Buchan,Aberdeenshire,Scotland.  He died before April 6th, 1290 in Buchan,Aberdeenshire,Scotland.¹ 

 Elizabeth Comyn
Elizabeth was born about 1223 in Buchan,Aberdeenshire,Scotland.  She died in 1267 in Kildrummy Castle,Aberdeenshire,Scotland.