Roman emperor who ordered the building of a wall across northern England

Let's find possible answers to "Roman emperor who ordered the building of a wall across northern England" crossword clue. First of all, we will look for a few extra hints for this entry: Roman emperor who ordered the building of a wall across northern England. Finally, we will solve this crossword puzzle clue and get the correct word. We have 1 possible solution for this clue in our database.