Fire of Moscow
1571 CE.
Shown on the map at 55.783°, 37.667°.
The Fire of Moscow occurred on 24 May 1571, when the Crimean led by the khan of Crimea Devlet I Giray, together with its allied tribal contingents bypassed the Serpukhov defensive fortifications on the Oka River, crossed the Ugra River into the Moscow suburbs, and rounded the flank of the 36,000–40,000 men of the Russian army.
Text from the Wikipedia article Fire of Moscow (1571), licensed CC BY-SA 4.0.