In Polish history , the Polish nobility claimed to be direct descendants of the historic Sarmatian people ( see : Sarmatism ) .
This might be connected with historical White Serbia and White Croatia , which included parts of present - day Polish .
In Polish history , the Polish nobility claimed to be direct descendants of the historic Sarmatian people ( see : Sarmatism ) and this might be connected with historical White Serbia and White Croatia , which included parts of present - day Poland .