The general sejm in Warsaw. First sejm in 1667.
This sejm was convened on 31 December 1666. The pre-sejm sejmiks were held in February of 1667. The sejm began proceedings on 7 March 1667. At first, it was prescribed to last for only two weeks but ultimately it was prolonged to six weeks. Andrzej Kotowicz, Great Lithuanian Scriptor, was elected the marshal of the Chamber of Deputies. The matters of funding the national defence and settling debts of the Commonwealth were raised during the turbulent proceedings. The Agreement of Łęgonice, 31 July 1666, was confirmed, what ended the rokosz led by Jerzy Lubomirski. The sejm finished proceedings on 19 May 1667, adopting many constitutions.
See: J. A. Chrapowicki, Diariusz. Część Trzecia: lata 1665-1669 [The diary. Part two. 1665-1669 period.], edited by A. Rachuba, T. Wasilewski, Warszawa 1988, s. 288-324; S. Ochmann-Staniszewska, Z. Staniszewski, Sejm Rzeczypospolitej za panowania Jana Kazimierza Wazy. Prawo-doktryna-praktyka, [Sejms of the Commonwealth under the rule of John II Casimir Vasa. Law-doctrine-practice] T. 1, Wrocław 2000, s. 480-526. M. Matwijów, Ostatnie sejmy przed abdykacją Jana Kazimierza 1667 i 1668 [The last sejms of 1667 and 1668, before the abdication of John II Casimir], Wrocław 1992; H. Olszewski, Sejm Rzeczypospolitej epoki oligarchii (1652-1763). Prawo-praktyka-teoria-programy [Sejm of the Commonwealth in the oligarchy era (1652-1763). Law-practice-theory-programs], Poznań 1966; Ustawodawstwo zob. Volumina Constitutionum, T. 4, cz. 2, Design and layout prepared by Stanisław Grodziski, Marcin Kwiecień, Krzysztof Fokt, Foreword Wacław Uruszczak, Warszawa 2017, s. 268-341.