the tsar's permission, presumably as the highest resolution. On January 27, 1716, Peter I left for Europe, where he stayed until October 1717 and ceased receiving timely and reliable information from Siberia. In January 1716, Gagarin (regarding the tsar's decree) issued his own orders for the construction of a fortress on the frontier of Kosogol Lake and in April on the construction of the fortresses on the Upper Yenisei.

On April 28, the Buholz detachment abandoned the Yamyshev fortress and moved down the Irtysh to the territory of the