твоя привязка к 1250 году в частности и к монголам в целом - неверна.

After the death of his first consort, Maria of Tver (1467), and at the suggestion of Pope Paul II (1469), who hoped thereby to bind Russia to the Holy See, Ivan III wedded Sophia Paleologue (also known under her original Greek and Orthodox name of Zoe), daughter of Thomas Palaeologus, despot of Morea, who claimed the throne of Constantinople as the brother of Constantine XI, the last Byzantine emperor. Frustrating the Pope's hopes of reuniting the two faiths, the princess endorsed Orthodoxy. Due to her family traditions, she encouraged imperial ideas in the mind of her consort. It was through her influence that the ceremonious etiquette of Constantinople (along with the imperial double-headed eagle and all that it implied) was adopted by the court of Moscow.