Jeremiah Curtin,
The Mongols in Russia
(1908)
“ It is clear that the inheritance of the Moscow throne from father to eldest son, not being in accord with ancient usage, was not yet firmly established. Toward the end of Dmitri’s reign, this became the greatest of all the cares which weighed on him. Living, as it were, in one family with his cousin, a friend faithful and devoted, his only near relative, peerless for magnanimity, a man who had “a golden heart,” as Dmitri himself declared with much emphasis, it was all the more difficult to touch upon this very delicate question. ”
