Salad Green or Merciless Historical Figure?

1. Arugula
2. Tatsoi
3. Mihirakula
4. Tamerlane
5. Mizuna
6. Mâche
7. Cao Cao
8. Caracalla
9. Iceberg

1, 2, 5, 6: Salad Green
3, 4, 7, 8: Historical Figure
9: Both