2nd Earl of Angus William Douglas
William was born in 1399 in Mar, Aberdeen, Scotland.¹   He died at the age of 38 in October 1437 in Mar, Aberdeen, Scotland.¹ 

 Margaret Haya
Margaret was born in 1404 in Locharret, Perth, Scotland.¹   She died at the age of 80 on April 22nd, 1484 in Mar, Aberdeen, Scotland.¹ 

 Helen Douglas
Helen was born in 1425 in Mar, Aberdeenshire, Scotland.²   She died at the age of 61 on November 20th, 1486 in Graham, Scotland.² 

 4th Earl of Angus George Douglas
George was born in 1426 in Mar, Aberdeenshire, Scotland.³   He died at the age of 37 on March 12th, 1463 in Kilmars, Ayrshire, Scotland.³