The Sejm was composed of two chambers: a chamber of deputies and a
senate. The chamber of deputies was composed of 100 deputies, in 1810 increased to 166. The initial 100 was composed of 60 deputies (after 1810, 100) elected from the ranks of the nobility (
szlachta) during the sessions of the local parliaments (
sejmiks), and 40 non-noble deputies (after 1810, 66), as well as members of the Council of State. The deputy candidates had to be 24 years or older, and government officials, priests or officers in active military service were not eligible for candidacy. They were elected for a nine-year term of office, in three tranches (elections for a third of the deputies were to be held every three years). The senate was composed of
bishops,
voivodes and
castellans; all nominated by the king. They numbered six each, in 1810 increased to ten each. Those enfranchised to vote included landowners, owners of large businesses, clergy, artists, scientists, and the military. Notably, peasants could vote as well, provided they owned the land.The Sejm session lasted fifteen days, and was convened every two years. Notable politicians of the Sejm of the Duchy of Warsaw included: Józef Godlewski, Tomasz A. Ostrowski,
Stanisław Sołtyk,
Stanisław Staszic, Wawrzyniec Surowiecki and
Józef Wybicki. ==Competences==