In the Wake of the Difficult Armistice of Altmark. Extraordinary Sejm in Warsaw. 1629.
The Sejm was convoked in October 1629. Pre-Sejm Sejmiks were held in the same month, and in November 1629. Sessions opened on November 13th 1629. Legal Secretary of Lithuania Stefan Pac was elected Speaker. Following a tempestuous discussion associated with unfavourable decisions (leaving all harbours east of Gdańsk – Livonia to River Dźwina – to the Swedes; levying additional customs duties on Prussian harbours; and sequestering Malbork, Sztum, and Głowa for George William, Elector of Brandenburg, as guarantor) the Armistice entered into in Altmark with the Swedes on September 26th 1629 was ratified; the armistice suspended all military action in Prussia, in progress since 1626. Considerable attention was also paid to the Radom and Vilnius Tribunals. The Sejm concluded on November 28th 1629.
See: W. Czapliński, Sejm w latach 1587-1696, in: Historia sejmu polskiego, vol. 1, Warsaw 1984, ed. J. Michalski, pp. 217-299; E. Opaliński, Sejm srebrnego wieku 1587-1652. Między głosowaniem większościowym a liberum veto, Warsaw 2001. For legislation, see Volumina Constitutionum, vol. 3 part 2, prepared for print by S. Grodziski, M. Kwiecień, A. Karabowicz, foreword by W. Uruszczak, Warsaw 2013, pp. 84-94.