Sword with Hussar blade + niello. Russian ? Austro Hungarian ?

[Victrix]

It’s typically Hungarian when the crossguard ends are wider than near the grip. Don’t know if it’s related to similar effect on the Slovakian cross (Slovakia was part of the Hungarian kingdom pre-1918). See picture below how a scene at Buda castle might look pre-1914. The Hungarian nobles dressed in national costume and carried sabres. Can’t see what the monogram shows but I assume since the sabre is private it should be the owner’s monogram and he must be a noble because of the crown. I suppose the sabre could also be for a private castle/estate guard since I read somewhere that gilt/brass was reserved for imperial and royal use (regular armed forces).

[francantolin]

Thank's a lot Victrix !
For my part I found the banner of the Order of Dobrzyn 1216 or Dobrin in Poland , a knights noblemen brotherhood created for protect cistercian missionaries against pagans tribes in their mission of evangelisation.
similar crossguard shape too.
Old flag 😅