Earl William Douglas
William was born in 1323 in Douglas, Lanarkshire, Scotland.  He died at the age of 61 in May 1384.

 Countess Margaret de Mar
Margaret was born in 1325 in Castle Cary, Somersetshire, England.  She died at the age of 67 in 1392.

 Earl James de Douglas of Drumlanrig
James was born in Castle Douglas, Lanarkshire. Scotland.  He died  due to died in battle of Otterburn on August 14th, 1388 in Otterburn, Berwickshire, Scotland.  He was buried on August 18th, 1388 in Melrose, Roxburghshire, Scotland.