Rubuta ci gaba don wannan sakin layi - Bayan mutuwar Batory a 1586, Zamoyski ya taimaka Sigismund III Vasa ya sami kursiyin Poland, yana yaƙi a cikin ɗan gajeren yakin basasa da sojojin da ke tallafawa Habsburg archduke Maximilian III na Austria. Gidan da ke tallafawa Sigismund an tattara shi a kusa da Zamoyski, yayin da dangin Zborowski ke tallafawa Maximilian. Zamoyski ya kare Kraków kuma ya ci sojojin Maximilian a yakin Byczyna
a shekara ta 1588. A cikin wannan yaƙin, wanda Sławomir Leśniewski ya bayyana a matsayin "ɗaya daga cikin mafi mahimmanci a tarihin Poland, kuma mafi mahimmanci a cikin aikin soja na Zamoyski", an kama Maximilian kuma a sakamakon yarjejeniyar Bytom da Będzin na 1589 dole ne ya daina duk wani da'awar ga kambi na Poland. Daga baya a wannan shekarar Zamoyski ya ba da shawarar sake fasalin zaɓen masarauta, wanda ya kasa wucewa Sejm. Zamoyski ya gabatar da wannan Sejm wani shiri wanda idan Sarki na yanzu ya mutu ba tare da zuriya ba sai dan takarar wasu 'yan asalin Slavic daga yanzu ya cancanci zama a kan kursiyin Poland. Wannan aikin ne wanda zai iya tunanin yiwuwar wata ƙungiyar tsakanin Katolika Poland, Orthodox Moscovy da Bohemia mai ɗan Furotesta. A zahiri, ya kasance mai karkatarwa da rashin dabara game da manufofin pro-Habsburg.