Columbia subject headings:
Harvard subject headings:
Nobility--Scotland--Biography
Scotland--History--James VI, 1567-1625--Biography.
Scotland--History--James VI, 1567-1625.
Scotland--History--Mary Stuart, 1542-1567--Biography.
Scotland--History--Mary Stuart, 1542-1567.
Stewart, Robert, Earl of Orkney, 1533-1593.
Princeton subject headings:
Orkney (Scotland)--History.
Scotland--History--16th century.
Shetland (Scotland)--History.
Stewart, Robert, Earl of Orkney, 1533-1593.