Once belonging to the fortification section called Marian Walls (Czech: Mariánské hradby) it is located in K Brusce Street in the Hradčany neighbourhood, not far from Hradčanská metro station.

The alternative name derives from the Brusnice (Bruska) stream, a tiny tributary of the Vltava River running along northern side of Prague Castle.

It was built as one of latest parts of Baroque fortification in 1721 by architect Giovanni Battista Alliprandi after a design by František Vogot.

During the War of the Austrian Succession in 1741 understaffed and weakly defended Písek Gate was where troops of Charles Albert, Elector of Bavaria and claimant to the throne of Bohemia, entered Prague.

After the Austro-Prussian War of 1866 it was decided that fortified cities were no longer necessary and the fortification ring of Prague started to be gradually dismantled.