According to tradition, the proponent of an alliance with Poland-Lithuania to save the Republic, called the Lithuanian party, was led by Marfa Boretskaya, the wife of Posadnik Isak Boretskii.
Forkæmperne for at indgå en alliance med Litauen for at redde republikken blev kaldt Det litauiske parti, og var i følge traditionen ledet af Marfa Boretskaja, hustru til Posadnik Isak Boretskij.