 Tolstoy was improvising a lot when it came to motives and undercurrents, occasionally creating links between things historians thought were unrelated.Having greatly increased the historical role of Boris Godunov, he's made him take part in several events had no bearing to.According to I.Yampolsky, Boris' speech in Duma, the clash with Sitsky, addressing Tsar Ivan on behalf of Duma asking for his return to the throne, his opposition to the monarch's marrying Princess of Hastings and unwilling support for tsarina Maria, Ivan's advise for Fyodor to always listen to what Boris would say, - were all author's artistic inventions.