After the Convocation Sejm of 1764, Bydgoszcz became one of three seats of the Crown Tribunal for the Greater Poland Province of the Polish Crown alongside Poznań and Piotrków Trybunalski. In 1766 royal cartographer Franciszek Florian Czaki, during a meeting of the Committee of the Crown Treasury in Warsaw, proposed a plan of building a canal, which would connect the Vistula via the Brda with the Noteć river.