He was the seventh child of Elisabeth and Eduard KÃ hler . His family were Bessarabian Germans from RÃ Å cani in Romanian Bessarabia ( near BÄ lÅ # i , present-day Moldova ) . KÃ hler was born in SkierbieszÃ w ( then named Heidenstein ) , in the General Government area of German-occupied Poland , as the seventh child of Elisabeth and Eduard KÃ hler , into a family of Bessarabian Germans from RÃ Å cani in Romanian Bessarabia ( near BÄ lÅ # i , present-day Moldova ) .