Tsar is a Slavic title derived from the Latin word caesar, which was intended to mean "emperor" in the European medieval sense of the term—a ruler with the same rank as a Roman emperor, holding it by
Simeon I of Bulgaria, the first Bulgarian tsar and the first person who bore the title "tsar", by Alphonse Mucha
Reception of the Tsar of Russia in the Moscow Kremlin, by Ivan Makarov
Crowning of Stefan Dušan, Emperor of the Serbs, as tsar, by Paja Jovanović
Mostich's epitaph uses the title tsar (outlined): "Here lies Mostich who was ichirgu-boil during the reigns of Tsar Simeon and Tsar Peter. At the age of eighty he forsook the rank of ichirgu boila and all of his possessions and became a monk. And so ended his life." (Museum of Preslav)
Caesar is a title of imperial character. It derives from the cognomen of Julius Caesar. The change from being a surname to a title used by the Roman emperors can be traced to AD 68, following the fall
Tsar
…Tsar ( ) is a Slavic title derived from the Latin word caesar, which was intended to mean "emperor" in the European medieval sense of the term—a ruler with the same rank as a Roman emperor, holding it by the…
Sculpture depicting Julius Caesar
Seal of the Caesar John Doukas
The Roman emperor Constantine the Great, mosaic in Hagia Sophia, Constantinople
Mehmed II and Ecumenical Patriarch of Constantinople Gennadios.