The date of his birth is not known. He was
the son of Yaroslav II Vsyevolodovich, grand prince
of Vladimir and Yaroslav's second wife, Rostoslava-Feodosia Mstislavna,
princess of Novgorod. He married a first wife whose name is unknown who died in
1252 and then in 1266 with Ksyenia, daughter of Yuri Mikhailovich, a Novgorod
boyar. He is shown on this chart.His sons from the
second marriage were Mikhail Starshi, prince of
Tver; Svyatoslav; Mikhail II, appanage prince of Tver; and he had two
daughters. On this chart we show the family at Tver.
He was the appanage prince of Tver, when the realm began to stabilize after the
Mongol invasion, from about 1247 to about 1271-2. And he was grand prince of
Vladimir from about 1263-4 to his death in 1271-2. To obtain the Kypchak khan's
yarlik for Vladimir he struggled with his brother, Alexandr Nevski. He founded
the house of Tver, whose princes struggled for centuries with the princes of
Moscow for supremacy in Russia.
1226 - his father, Yaroslav Vsyevolodovich campaigns in Estonia.
1230 - his father again elected prince of Novgorod.
1234 - battle of Embakh river - his father and older brother, Alexander, are
fighting the Teutonic Knights. After battle of Derpt his father receives
1237-8 - his uncle, Yuri II, killed in battle against Mongols. Was Yaroslav in
Lithuania with his father? At any rate he escaped the Mongols.
1238 - his father, Yaroslav, appointed grand prince of Vladimir by Mongols.
1246 - his father dies while on required visit to Karakorum in Mongolia. His
uncle, Svyatoslav III, becomes grand prince of
1247 - he is given Tver as principality, previously the city had been governed
by a namestnik appointed by his father.
1255 - he supports one brother, Andrei, for title of
grand prince of Vladimir, against another brother, Aleksandr Nevski. Andrei is defeated by Aleksandr and
Tatar troops forcing Yaroslav to flee. His wife is killed and his son taken
1258 - he receives yarlik again for Tver.
1263 - on death of his brother, Aleksandr, he receives yarlik from Berke
for grand prince of Vladimir. This makes Tver the political capital. He is also
appointed prince of Novgorod and tries to expand
Tver at Novgorod's expense but fails in this.
1272 - on his death he is succeeded as prince of Tver by his son,
Svyatoslav Yaroslavich, and as grand prince of
Vladimir by his uncle, Vasilii Yaroslavich.