Frances Mackenzie English noblewoman and amateur sculptor (-1840) (1786–1840) Parents Mary Proby Francis Mackenzie, 1st Baron Seaforth Children Siblings unknown daughter Mackenzie unknown daughter Mackenzie William Frederick Mackenzie William Mackenzie unknown daughter Mackenzie Helen Mackenzie, Lady Mackenzie Francis John Mackenzie Mary Elizabeth Frederica Mackenzie George Leveson Boucherat Mackenzie unknown daughter Mackenzie