However, his supposed allies (Rudolf IV of Austria, Meinhard III of Tyrol and Casimir III of Poland) failed to join him, and the emperor initiated negotiations that lasted for months with the mediation of Casimir III.
Namun sekutu-sekutunya yang diduga (Rudolf IV dari Austria, Meihnard III dari Tirol dan Kazimierz III dari Polandia) gagal bergabung dengannya, dan kaisar memulai perundingan yang berlangsung berbulan-bulan dengan mediasi Kazimierz III.