Life and Marriage
By her secular name Euphrosyne, she was the daughter of Prince Rogvolod Borisovich of Polotsk and was raised in the Transfiguration Monastery of that city. Around the age of thirty she married Yaroslav Vladimirovich, Prince of Pskov, probably as his second wife.
Yaroslav abandoned Pskov for Livonia, where he married a German Catholic woman and joined the Livonian Order in raids against the Russian lands, capturing Izborsk in 1231. According to the Orthodox Church in America's listing, Eupraxia was the aunt of Prince Dovmont-Timothy, the later celebrated holy prince of Pskov.