| Answer | Crossword Clue |
|---|---|
| MDI | Year in Ivan the Great's rule |
| DLIII | Year in Justinian the Great's reign |
| MDLI | Year in Ivan the Terrible's reign |
| MDL | Year in the reign of Ivan the Terrible |
| MII | Year in Ethelred the Unready's rule |
| MIV | Year in the rule of Ethelred the Unready |
