Crossword clues for the word: MCXI The word MCXI has appeared as an answer to at least 4 crossword clues on different crossword puzzles. Crossword clues for MCXI Showing 1 to 4 of 4 results Clue(s) "Roman 1,111" 12th cen. date. 45 years after William I invaded England Year that Henry V became Holy Roman emperor