| Date of death | 4. 1081 |
| Cemetery | Abbey at the Ossiach lake, Carinthia, Austria |
| GPS coordinates of the cemetery | 46.677003, 13.982974 |
Note:
The legend says that he went to the pope in Rome to have his sins (killing bishop Stanisław and other) forgiven. On his way back he stopped at the Ossiach abbey, presented himself as a mute and stayed there as the lowest servant. Only on his deathbed he told them who he was. Slovenian poet Anton Aškerc wrote a wonderful ballad about Boleslav's story, the title is Mutec osojski.
Author of contribution: Janez, published 7. 11. 2015