Władysław had won the support of most of the political factions; and in the absence of any other serious contenders, he was elected King of Poland and Grand Duke of Lithuania.

In accordance with the dictates of the law, the Primate of Poland, Jan Wężyk, acting as Interrex, summoned a convocation sejm for June 22, 1632, which lasted through August 17.

Non-Catholics, led by Marshal Radziwiłł and the magnate Bogusław Leszczyński, demanded increased rights; they were opposed by Voivode Tomasz Zamoyski and the future Bishop Aleksander Trzebiński, but managed to gather enough support that this question dominated the ensuing election sejm.

[10] Muscovy was just then preparing for war with the Commonwealth and failed to put forward a candidate[11]—indeed, it attacked while the election sejm was subsequently in session.

The indecisiveness of the Catholic faction allowed Władysław to campaign for increased rights for Protestants and Eastern Orthodox Christians, and thus he obtained their support.

[13] Władysław, lobbied by Peter Mogila, also granted the Orthodox Church the right to its own hierarchs, subject to the candidates' confirmation by the government.

[5] The religious freedoms that had been established in 1573 by the Warsaw Confederation were reaffirmed, and a new tax was adopted, the kwarta, which sent 1/4 of starostwos' incomes to the Royal Treasury.

[7] In the pacta conventa, Władysław pledged himself to fund a military school and equipment; to find a way to fund a naval fleet; to maintain current alliances; not to raise armies, give offices or military ranks to foreigners, negotiate peace treaties or declare war without the Sejm's approval; not to take a wife without the Senate's approval; to convince his brothers to take an oath to the Commonwealth; and to transfer the profits from the Royal Mint to the Royal Treasury rather than to a private treasury.

The 1633 Sejm would also take more direct control of the royal mint, deepen the sway of serfdom, and accept the petition of Polish Jews to forbid the printing of antisemitic literature, its importation from Western Europe, and its distribution in the Commonwealth.