1820 СПБ-ПД 20 kopecks

Alexander I (1801-1825)  23 December 1777 – 1 December 1825 was Emperor of Russia from 1801, the first King of Congress Poland from 1815, and the Grand Duke of Finland from 1809 to his death. He was the eldest son of Emperor Paul I and Sophie Dorothea of Württemberg.