Nicholas I

Nicholas I may refer to:

Pope Nicholas I (c. 800–867), or Nicholas the Great
Nicholas Mystikos (852–925), Patriarch Nicholas I of Constantinople
Nicholas I (bishop of the Isles) (fl. 1147–1152), Bishop-elect of the Isles
Nicholas I, Lord of Mecklenburg (died 1200)
Nicholas I of Transylvania (died after 1203), voivode of Transylvania
Nicholas I (bishop of Schleswig) (died 1233)
Patriarch Nicholas I of Alexandria, Greek Patriarch of Alexandria between 1210 and 1243
Nicholas I, Duke of Troppau (c. 1255–1318), natural son of king Ottokar II of Bohemia, became Duke of Troppau in Silesia
Nicholas I, Lord of Rostock (died 1314)
Nicholas I, Count of Tecklenburg (died 1367)
Nicholas I Garai (died 1386), chief governor of Bratislava, palatine to the King of Hungary
Nicholas I of Opole (c. 1424–1476)
Nicholas I, Duke of Lorraine (1448–1473)
Nicolaus I Bernoulli (1687–1759); Swiss mathematician
Nicholas I, Prince Esterházy (1714–1790), Hungarian prince
Nicholas I of Russia (1796–1855), Emperor of Russia and King of Poland
Nicholas I of Montenegro (1841–1921), King of Montenegro

See also