俄国沙皇尼古拉一世(1825 - 1856年)也变得侵略成性，一边向南进逼土耳其帝国，一边对君士坦丁堡虎视眈眈。
The Tzar Nicholas I of Russia (1825-1856) was also becoming aggressive and pressing southward upon the Turkish Empire with his eyes on Constantinople.
俄国沙皇尼古拉一世诞生，是沙皇保罗一世第三个儿子。
Nicholas I, Tsar of Russia, was born the third son of Tsar Paul I.
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