In a large part, yes - creating large squares, avenues, decongesting dangerously crowded slums. I believe it was Pope Pius IV who did something similar to Rome

In a large part, yes - creating large squares, avenues, decongesting dangerously crowded slums. I believe it was Pope Pius IV who did something similar to Rome retroactively imposing an urban structure onto the city by creating main avenues, squares and intersections.