On 24 November 1227, during a diet of the Polish Piast dukes at Gąsawa, he was assassinated, probably on orders from Duke Swietopelk II of Pomerelia.
Gąsawa |
Oćwieka, Kuyavian-Pomeranian Voivodeship, a village in the Gmina Gąsawa, Żnin County, Kuyavian-Pomeranian Voivodeship, Poland