Under the plan of the Russian command, in the campaign of 1656 the main blow was inflicted on
Riga, where a large army led by
Tsar Alexis advanced from
Polotsk . Auxiliary blows were applied from
Pskov to
Dorpat (Russian: Yuryev) and from
Novgorod to
Noteburg (Oreshek) and
Nyenschanz. The capture of Dorpat was entrusted to the army of
Alexey Trubetskoy. The army of Trubetskoy was quite numerous. On the paper there were 5546 cavalry (3327 nobles, 832
Reiters, 622
Cossacks and 102 Tatars) and about 5,000 infantry (3
Streltsy orders and 4 regiments of the New Order). The garrison of the fortress, commanded by Lars Fleming, consisted of an infantry regiment (448 soldiers in 5 companies), 45 artillerymen and about 100 regular cavalrymen. They were supported by several hundred armed burghers. == Siege ==