Kazimierz Waliszewski,
Ivan the Terrible
(1904)
“ In August, 1560, Nicholas Radziwill, 'the Black,' appeared at Riga with a Polish army, and, tearing off every veil, demanded the cession of the whole of Livonia, with the secularization of all the territories on the right bank of the Dvina and their direct annexation to Poland. Kettler's fellow-countrymen have looked on him as a traitor. In all probability he was only an unlucky player of the game. He had striven to find an ally; but, as a certain writer has asserted, in justification of Sigismund-Augustus, nobody can ally himself with a corpse. ”
