Nicholas I, who succeeded Alexander, represents the struggle of the dynasty in a form which might be reconciled with conscience. He differed materially from Alexander in two respects. First, although he was, like Alexander, moderately endowed in intellect, he had great strength of character and would stubbornly pursue any policy which he adopted. In the second place, that policy was inevitably shaped by the accident that he was born many years after Alexander. The eldest son of Paul I had received his education at a time when Catherine was under the influence of the French humanitarians. Nicholas came to the years of discretion during her second phase, when the Revolution had soured her taste of all things French and liberal. His chief tutor had been a French emigrant, an incompetent teacher and a bitter enemy of liberal ideas. Nicholas had grown up a rough and conceited boy. Later he had had abler teachers, but he had yawned over their lessons. He had in 1817 married a daughter of the King of Prussia, and, like almost all the Romanoffs, he thought a minute acquaintance with military drill the first equipment for life. In spite of hints from Alexander he refused to prepare for the serious task of governing a great nation. By an unfortunate accident his vague despotic mood was at the very opening of his reign hardened into an attitude of fierce hostility to the new culture. His elder brother Constantine had, as I said, forfeited his right to the throne. He had fallen in love with a charming Polish lady, the Countess Jeannette Grudzinsky, after divorcing his first wife. As no amount of personal charm, not associated with royal blood, fitted a woman to occupy the throne of Elizabeth and Catherine, the Tsar had, in 1822, given him the alternative of losing either the lady or his right to the throne. Constantine had not a regal disposition. He married Jeannette and abdicated the right he had to the throne on the restored principle of inheritance. Nicholas knew of this abdication, though it was otherwise known only to a few intimate councillors. But he knew that there was much feeling against him in St. Petersburg, and he proceeded diplomatically. He proclaimed Constantine Tsar. Prince Golitzin and others who knew of the abdication begged him to refrain until the Council had opened a certain sealed letter which Alexander had left, but Nicholas persisted and sent word to his brother at Warsaw. Constantine refused the throne, and for several weeks letters went backward and forward. Nicholas was very much attached to his brother, but it is probable that he wanted time to study the threatening situation in St. Petersburg and secure the stability of his throne. He yielded on December 13th, and fixed the following day for the taking of the oath of allegiance.