The locations and names of cities i Europe haven't changed much since 1792.*
But the size and significance have changed. And for the Napoleontic time, the military significance (trade routes with little height differences, rivers, swamps, mountains, etc), made many cities important that are now economical of minor value and are only of some size now because they already were !
(and automatical became after Napoleon regional centres for authorities, universities, hospitals, institutions).
I once was, long time ago, in a museum where they had made an dynamic map of the area: starting in the dark prehistory and small light bulbs lightened up as function of time showing settlements, growing into cities. First a few on the best spots to survive, then along old trade routes, then with the romans the strategic strongholds, etc.
Very insightful to see that happen.
With modern software: Is that already been done with the whole of Europe ???
A kind of CIV like representation of RL history
A bit back on topic:
Below a link to a dynamic program, an animated map, that shows the battles of Napoleon in South Germany, part of the Ulm to Austerlitz campaign of 1805 The battle of which Napoleon later said:
"that battle we won by marching" !
You see also the relevant cities of France to Austria.
Made by the department of history of the Oregon university. Very interesting to see
http://pages.uoregon.edu/dracobly/napoleon/