Definition: In this task, you will be presented with a text, a pronoun from the text, and two candidate names. You should determine what the pronoun refers to and classify the answers into A, B, or Neither. A and B here are referring to option A and option B. Position of the pronoun in the text is showed within two "_"s.
Input: At the end of 1411, Stibor, his brothers and other members of the Clan of Ostoja were in charge of leading troops to fight against the Republic of Venetia in Friuli. In 1412 Stibor was meeting with Zawisza Czarny (The Black Knight) in his Castle of Star* *ubov*a in Slovakia, preparing the negotiation between Sigismund and Polish King Vladislav Jogaila, which ended with the Treaty of Lubowla. Before _his_ death, he set up a collegiate chapter for Augustinians in V*g*jhely (today Nov* Mesto nad V*hom in Slovakia). <sep>, Pronoun: his <sep>, A: Sigismund <sep>, B: Vladislav Jogaila

Neither