 Duke Vladislaus of Opole also had a claim on Ruthenia but could not convince King Wenceslaus of Germany to intervene on his behalf.Jadwiga confirmed the privileges of the local inhabitants and promised that Ruthenia would never again be separated from the Polish Crown.After the reinforcements that Władysław-Jogaila sent from Lithuania arrived in August, Halych, the only fortress to resist, also surrendered.