  Another comment: Vilnius, Gardinas and Lyda, are official names of cities of Vilnius region; by this time official names already should be used, same as you use Wilno, Grodno, etc. for Polish cities. Vilnius region, when mentioned in this context, in generally means territory of Lithuania, therefore Lithuanian names should be used. Wilno Voivodship is territory of Poland, so it's cities might be named in Polish if there'd be list. You can write more in supposedly oversimplified parts. Zeligovski was Polish general and I hope you understand how it was. Will write more later.  