Yaroslav, one of Vladimir’s younger sons, is the supposed founder, in 1010, of Yaroslavl, situated on the upper Volga River, at its junction with the Kotorosl River, about one hundred and fifty miles (two hundred and forty kilometers) northeast of Moscow.

Yuri’, after the Mongols sack his capital, flees across the Volga northward to Yaroslavl', where he hastily musters an army.

He and his brothers then turn back toward Vladimir in hopes of relieving the city before the Mongols take it, but they are too late.

Yuri sends out a force of three thousand men under Dorozh to scout out the Mongols’ position; whereupon Dorozh returns saying that Yuri and his force are already surrounded.

As he tries to muster his forces, he is attacked by the Mongol force under Burundai and flees, but is overtaken on the Sit River and dies there along with his nephew, Prince Vsevolod of Yaroslavl'.

The battle marks the end of unified resistance to the Mongols and inaugurates two centuries of the Mongol domination of modern day-Russia, Ukraine, and Belarus.

The Principality of Yaroslavl is finally absorbed into the Grand Principality of Moscow in 1463, with the area it once covered becoming an oblast within the new structure of the Muscovite state.

From this point forward, the history of the city and its lands will become completely inseparable from that of Moscow and eventually Russia.

...Yaroslavl, ...