Margaret Montgomerie Peerage person ID=172441 Parents Hugh Montgomerie, 1st Earl of Eglinton Helen Campbell Children William Sempill Peter Sempill Helen Sempill Robert Sempill, 3rd Lord Sempill Mary Sempill Ninian Sempill David Sempill of Craigenfeoch Siblings Neil Montgomerie Robert Montgomerie Janet Montgomerie Matilda Montgomerie William Montgomerie Lady Helen Montgomerie Lady Isabel Montgomerie John Montgomerie, Master of Eglinton Partners John Campbell William Sempill, 2nd Lord Sempill