 Each of the two candidates had supporters in the Polish-Lithuanian Commonwealth with the two opposing sides gathered around pro-Sigismund Chancellor and Hetman Jan Zamoyski and the Primate of Poland, Stanisław Karnkowski on one side and the pro-Maximilian Zborowski family on the other.Bad blood between Zamoyski and the Zborowski family dated years past; tensions during the elections ran high.Sigismund, supported by Zamoyski and the former king's wife, Anna Jagiellon, was elected King of the Polish-Lithuanian Commonwealth on 19 August 1587 and recognized as such by the "interrex", the Primate Karnkowski.