tensions continued to rise between bern and fribourg leading to the battle of sempach in 1386. following the bernese victory in the battle, fribourg lost their holdings in the simmental. bern combined the herrschaft of mannenberg-reichenstein with the castles and appointed a vogt to oversee the lands. the vogt settled in blankenburg castle and made it into the center of government. both mannenberg castles were allowed to fall into ruin.