_ XIII, 16th-century Pope best known for his reformation of the calendar

Let's find possible answers to "_ XIII, 16th-century Pope best known for his reformation of the calendar" crossword clue. First of all, we will look for a few extra hints for this entry: _ XIII, 16th-century Pope best known for his reformation of the calendar. Finally, we will solve this crossword puzzle clue and get the correct word. We have 1 possible solution for this clue in our database.