Nicholas I was Emperor of Russia, King of Congress Poland, and Grand Duke of Finland. He was the third son of Paul I and younger brother of his predecessor, Alexander I. Nicholas's reign began with the failed Decembrist revolt. Wikipedia
Born: July 6, 1796, Gattšina lossipark, Russia
Died: March 2, 1855 (age 58 years), Russian Empire
Spouse: Alexandra Feodorovna (m. 1817–1855)
Parents: Paul I of Russia and Maria Feodorovna