ensuing debate and adoption of the Constitution of 3 May took place in a quasi-coup d'état: recall notices were not sent to known opponents of reform, while many pro-reform deputies arrived early and in secret, and the royal guard were positioned about the Royal Castle, where the Sejm was gathered, to prevent Russian supporters from disrupting the proceedings. On 3 May the Sejm met with only 182 members present, about a half of its "dual" number (or a third, if one was to count all individuals eligible to take part in the proceedings, including the Senate and the king). The bill was read out and adopted overwhelmingly, to the enthusiasm of the crowds gathered outside. The work of the Great Sejm did not end with the passing of the Constitution. The Sejm continued to debate and pass legislation building on and clarifying that document. Among the most notable acts passed after the 3 May was the Deklaracja Stanów Zgromadzonych (Declaration of the Assembled Estates) of 5 May 1791, confirming the Government Act adopted two days earlier, and the Zaręczenie Wzajemne Obojga Narodów (Reciprocal Guarantee of Two Nations, i.e., of the Crown of Poland and the Grand Duchy of Lithuania) of 22 October 1791, affirming the unity and indivisibility of Poland and the Grand Duchy within a single state, and their equal representation in state-governing bodies. The Mutual Declaration strengthened the Polish-Lithuanian union, while keeping many federal aspects of the state intact. The Sejm was disbanded on 29 May 1792. On that day, soon after learning that the Russian army had invaded Poland, the Sejm gave the commander-in-chief position to the king, and voted to end the session. Aftermath Soon afterwards, the Friends of the Constitution, regarded as the first Polish political party, and including many participants of the Great Sejm, was formed to defend the reforms already enacted and to promote further ones. The response to the new Constitution was less enthusiastic in the provinces, where the Hetmans' Party exerted stronger influence. The Great Sejm's reforms were brought down by the Targowica Confederation and the intervention of the Russian Empire. On 23 November 1793 the Grodno Sejm annulled all the enactments of the Great Sejm, including the Constitution of 3 May 1791. See also List of deputies of the Great Sejm Notes a A website dedicated to the genealogy of the Great Sejm participants, maintained by Marek Jerzy Minakowski, lists