Since Polish-Lithuanian Commonwealth was left without a monarch, and there was a danger of anarchy, in late August 1574 the Primate of Poland called a council of senators and [[magnate]]. The council, which did not include envoys from the [[Grand Duchy of Lithuania]], the [[Duchy of Livonia]] and [[Royal Prussia]], discussed whether Henri should still be regarded King of Poland. After lengthy deliberations, Henri was called to return to [[Krakow]] before May 12, 1575.
In May 1575, Polish nobility gathered at [[Stezyca, Lublin Voivodeship|]], but no decision was taken. Internal conflict between pro-, and anti - [[Habsburg]] factions deepened, while southeastern provinces of [[Red Ruthenia]] and [[Podolia]] were raided by , who captured thousands of people. Finally, with support of Senate, the Primate officially declared interregnum.
== Convocation Sejm ==
Primate [[Jakub Uchanski]] summoned the Convocation [[Sejm]] to [[Warsaw]] on October 3, 1575. The date of royal election was set for November 7. Pro-French and pro-Habsburg faction, which consisted of most senators, Roman Catholic clergy (including Uchanski himself), Protestants, Prussian cities and Lithuanians supported [[Maximilian II, Holy Roman Emperor]].
[[Image:Nicolas Neufchâtel 002.jpg|thumb|right|200px|Maximilian II Habsburg]]
Most of Polish [[szlachta]], however, backed an unspecified [[Piast dynasty|Piast]] candidate. As a future King, they saw [[Jan Zamoyski]], [[John III of Sweden]] or [[Prince of Transylvania]], [[Stephen Bathory]]. Also, envoys of the [[Ottoman Empire]] supported either John III or Bathory. Turkish opinion mattered, as the nobility wanted to avoid any military conflicts with such a powerful neighbor.