Sergius is a male given name of Ancient Roman origin after the name of the Latin gens Sergia or Sergii of regal and republican ages. It is a common Christian name, in honor of Saint Sergius, or in Russia, of Sergius of the Holy Caves, one of saint Fathers of Kyiv, Saint Sergius of Radonezh, and has been the name of four popes. It has given rise to numerous variants, present today mainly in the Romance (Serge, Sergio, Sergi) and Slavic languages (Serhii, Sergey, Serguei, Srđan). It is not common in English, although the Anglo-French name Sergeant is possibly related to it. Etymology The name originates from the Roman nomen (patrician family name) Sergius, after the name of the Roman gens of Latin origins Sergia or Sergii from Alba Longa, Old Latium, counted by Theodor Mommsen as one of the oldest Roman families, one of the original 100 gentes originarie. It has been speculated to derive from a more ancient Etruscan name but the etymology of the nomen Sergius is problematic. Chase hesitantly suggests a connection with the praenomen Servius, probably from an old Latin root meaning "to preserve" or "keep safe". It became a personal name in Roman imperial times and spread to the Byzantine Empire in the Greek form Sergios (Σέργιος). It became popular in Christianity in honor of the fourth-century martyr and saint Sergius, especially among Roman ecclesiastics of Syrian extraction, starting in the seventh century. Sergei was the second most popular name in Russia in the 1980s. In the Middle Ages in Western Europe it fell into disuse. It became widespread again in the 1800s through translations of Russian literature, especially French translations. Worldwide Its form varies by language: Albanian: Serxho (Sarkis or Sarjoun) (Arab Christian name) (Sargis or Sarkis) (Sargis) (Siarhei or Siarhiej, ), diminutive (Siarheika ) (Sergei or Sergey) (Sergii or Sergiy) (Sergo) (Sergios or Seryios) (Sergei, Sergey), Russian diminutive ( ) (Serhii , Serhiy, Sergiy or Sergii), diminutive (Serhiiko , Serhiyko or Sergiyko). Given names List of people with given name Sergius Pope Sergius I Pope Sergius II Pope Sergius III Pope Sergius IV List of notable people with given name Serge Serge Abiteboul (born 1953), French computer scientist Serge Adda (1948–2004), president of the French television station TV5 Serge Akakpo (born 1987), Togolese footballer Grand Duke Sergei Alexandrovich of Russia (1857–1905), son of Emperor Alexander II of Russia Serge Ambomo (born 1986),