Family: 9th Earl of Mar Uilleam Dhonnchadha / Countess Of Mar Elizabeth Isabel Comyn (F5178)
m. Abt 1242
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Male
9th Earl of Mar Uilleam Dhonnchadha
Birth 1222 Aberdeenshire, Scotland 
Death 25 Jul 1281 Aberdeenshire, Scotland Burial Marriage Abt 1242 Aberdeenshire, Scotland Father 4th Earl of Mar Donnchadh Mar | F5365 Group Sheet Mother Orabillis of Nessius | F5365 Group Sheet
Female
Countess Of Mar Elizabeth Isabel Comyn
Birth Abt 1223 Morayshire, Scotland Death 1267 Aberdeenshire, Scotland Burial Father Earl of Buchan William Comyn | F2071 Group Sheet Mother Countess Of Buchan Margaret Colhan | F2071 Group Sheet
Male
+ 6th Earl of Mar Domhnall Mar, I
Birth Abt 1230 Aberdeenshire, Scotland Death 25 Jul 1297 Aberdeenshire, Scotland Burial Cumberland, England Spouse Countess Of Chester Helen Ferch Liewellyn of Wales | F25589 Marriage Abt 1270