Margaret Mackenzie (died 1692) (1630–1692) Parents Barbara Forbes George Mackenzie, 2nd Earl of Seaforth Children Barbara Sinclair Sir James Sinclair of Mey, 3rd Bt. Mary Sinclair Elizabeth Sinclair George Sinclair Siblings Kenneth Mackenzie, 3rd Earl of Seaforth George Mackenzie Jean Mackenzie Colin Mackenzie Roderick Mackenzie Barbara Mackenzie John Mackenzie, 1st of Grinard Partners Sir William Sinclair of Mey, 2nd Bt.