u/Hefty-Invite-6203

Recently discovered record of divorce between my maternal grandparents in Polish. My mother recently passed and did not know her biological parents. I found a divorce document for them in 1943. The document shows their birth date and place as well as their marriage date and place and divorce. I was hoping this would provide some assistance in finding more information but alas a brick wall. My grandfather, Ernst Kirk, was born in 1910 in Sassenburg, Germany and my grandmother, Margarete Virus was born in 1914 in Blotno, Poland (Prussia at the time). The marriage was in 1934 Pryzynotecko Poland in the Lubusz Voivodeship. They divorced in 1943 in Poland(Stryzelcach Krajenskich). Grandfather died in the Battle of the Bulge in 1945. Grandmother is unknown. Any thoughts or suggestions on where to go from here?