Xenia of Tarusa (ca. 1246 - 1312), also known as Xenia Yourjevna , was a Princess of Tver and of Vladimir from 1267 to 1271. She is counted among the saints of the Russian Orthodox Church

Russian Orthodox Church

The Russian Orthodox Church or, alternatively, the Moscow Patriarchate The ROC is often said to be the largest of the Eastern Orthodox churches in the world; including all the autocephalous churches under its umbrella, its adherents number over 150 million worldwide—about half of the 300 million...

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Xenia of Tarusa was a daughter of Youri Mikhailovich, Prince of Tarusa

Tarusa

Tarusa is a town and the administrative center of Tarussky District of Kaluga Oblast, Russia, located on the left bank of the Oka River, south of Serpukhov, northeast of Kaluga, and about south of Moscow. Population:...

, by conflicting sources she could have been a daughter of Citizen Youri of Novgorod. She married Yaroslav III (Yaroslav Yaroslavich), Prince of Tver and Prince of Vladimir, the younger brother of Aleksandr Nevsky in 1265. During her marriage and the reign of her husband she was unusually influential in the affairs of the state and remained so even after Yaroslav's demise in 1271. Soon after she retired to the women's monastery in Novgorod, yet continued to play an influential role in the affairs of the principality. She died in 1312 in seclusion.