5th Earl of Mar William
5th Earl of Mar was born in 1222 in Mar, Aberdeen, Scotland.  He died at the age of 59 on July 25th, 1281 in Kildrummy Castle, Aberdeen, Scotland.

 Elizabeth Comyn
Elizabeth was born about 1223 in Altyre, Moray, Scotland.  She died in 1267 in Kildrummy Castle, Aberdeen, Scotland.

 Donald Stuart
Donald was born about 1243 in Kildrummy, Aberdeen, Scotland.  He died on July 25th, 1297 in Kildrummy Castle, Aberdeen, Scotland.