JAMES, 1st LORD of DALKEITH DOUGLAS. James Douglas, 1st Baron Dalkeith 1356-1441 was a Scottish nobleman born in Dalkeith, Midlothian, Scotland to Sir James Douglas and Agnes Dunbar. He married Elizabeth (Princess) Stewart, daughter of King Robert III, about the year 1387. They had four children before she died: William, James, Henry, and Margaret. He later remarried Janet Borthwick. James is my 18th G GRANDFATHER.