Lady Isabel Hay Peerage person ID=210870 (d. 1509) Parents Lady Beatrix Douglas William Hay, 1st Earl of Erroll Children Isabel Oliphant Laurence Oliphant George Oliphant Margaret Oliphant William Oliphant John Oliphant, 2nd Lord Oliphant Siblings Beatrice Hay Lady Elizabeth Hay Nicholas Hay, 2nd Earl of Erroll Lady Margaret Hay William Hay, 3rd Earl of Erroll Partners Laurence Oliphant, 1st Lord Oliphant