Across
- 2. First Holy Roman Emperor
- 5. Crossed the Rubicon in 49 BC
- 6. First Christian Roman emperor
- 8. Genghis Khan's warrior people
- 9. Marco Polo's host, ___ Khan
- 13. ___ Khan, world's great conqueror
- 14. Turkish empire lasting six centuries
- 15. Justinian's powerful empress
- 18. Emperor who built a British wall
- 19. Sultan who conquered Constantinople
- 21. Tribe that gave us vandalism
- 23. Rome's first true emperor
- 24. Of Charlemagne's people
- 25. Byzantine emperor, legal reformer
Down
- 1. ___ Carta, 1215 English charter
- 3. Middle Ages descriptor
- 4. Germanic tribe that sacked Rome
- 7. Eastern Roman Empire culture
- 10. Fearsome Hun warlord
- 11. Magnificent Ottoman sultan
- 12. Fiddled while Rome burned, legend says
- 16. Series of holy wars, 1095-1291
- 17. Elite medieval warrior monks
- 20. Et tu ___, Caesar's killer
- 22. Crusaders' great Muslim foe