Lithuania by establishing Vilnius University . Title: King of Poland and Grand Duke of Lithuania ( Lithuanian : Lenkijos karalius ir Lietuvos didysis kunigaikštis ; Belarusian : karol Polščy, vialiki kniaź litoŭski; Polish : Król Polski, wielki książę litewski ). LITHUANIAN CONSORTS - http://en.wikipedia.org/wiki/List_of_Lithuanian_consorts Krupski ( Belarusian : Крупскі, Polish :