Europe 1600 (
http://warlight.net/SinglePlayer?PreviewMap=9427 ) is very similar to this one:
http://www.paradoxian.org/eu2wiki/index.php/Map#Europe which is used in a 2002 game (Europa Universalis 2).
The only changes are merges:
238 & 239 (Scotland)
241 & 244 (England)
344 & 377 (Luxemburg)
333 & 343 (Hessen, Germany)
310 & 336 (Hannover, Germany)
359 & 479 (Greece)
252 & 308 (Sweden)
Also, 820 (Corfu) is not in Europe 1600.
The names are very often the same.