Robert Nisbet Bain, 1911 Encyclopædia Britannica, Volume 18… (1911)
“ The most important result of the truce of Deulina was the return from exile of the tsar's father, who henceforth took over the government till his death in October 1633, Michael occupying quite a subordinate position. He was a gentle and pious prince who gave little trouble to any one and effaced himself behind his counsellors. Fortunately for him they were relatively honest and capable men. ”
