During the Lithuanian Civil War (1697–1702), the anti-Sapieha coalition (also called the Republicans) decided to found the Tribunal Banner, which would be made up of the Hungarian-type infantry, in 1698.
[5] As the unit began forming, the Republicans decided to more firmly establish its existence through the resolution of Lithuanian nobility on 21 December 1698 in Gardinas.
[6] During the Sejm of 1699, which was in session from June 16 to 30, the Tribunal Banner was legalized and its strength established at 100 Hungarian-type infantrymen and a few officers.
[7] Despite the Republicans no longer having the absolute control over the Lithuanian Tribunal which they had in 1698, the Great Scribe of Lithuania Jonas Steponas Tyzenhauzas [lt] implemented the Sejm's decision.
[7] The decision to establish the Tribunal Banner that was only subject to the Tribunal's marshal, was approved by Lithuania's Republicans in the so-called Valkininkai resolution of 24 November 1700, which also provided for the possibility of using military coercion against Jewish communities if they did not pay the portion of the Jewish poll tax assigned to financing the military unit on time.
[7] The Supreme Lithuanian Tribunal's Hungarian Infantry (sometimes also called Janissary) Banner was finally legalized in 1717 during the so-called Silent Sejm.
[7] Additionally, the Sejm's constitution did not name the Tribunal Banner's garrison location or size and it can only be assumed that the aforementioned hundred soldiers and a few officers continued serving.