William Ker, 2nd Earl of Roxburghe Scottish Earl (1622–1675) Parents John Drummond, 2nd Earl of Perth Lady Jean Ker Children Robert Ker, 3rd Earl of Roxburghe John Bellenden, 2nd Lord Bellenden Lady Jean Ker Siblings Sir John Drummond, 1st of Logie Almond James Drummond, 3rd Earl of Perth Robert Drummond Lady Jean Drummond Lady Lilias Drummond Henry Drummond, Lord Drummond