Grand prince or great prince (feminine: grand princess or great princess) (; Greek: megas archon; ) is a title of nobility ranked in honour below emperor, equal of king or archduke and above a sovereign prince. Grand duke is the usual and established, though not literal, translation of these terms in English and Romance languages, which do not normally use separate words for a "prince" who reigns as a monarch (e.g., Albert II, Prince of Monaco) and a "prince" who does not reign, but belongs to a monarch's family (e.g., Prince George of Wales). Some Slavic (Królewicz), Germanic, Dutch, and Scandinavian languages do use separate words to express this concept, and in those languages grand prince is understood as a distinct title (for a cadet of a dynasty) from grand duke (hereditary ruler ranking below a king). Some recent sources also use Archduke. The title of grand prince was once used for the sovereign of a grand principality. The last titular grand principalities vanished in 1917 and 1918, the territories being united into other monarchies or becoming republics. Already at that stage, the grand principalities of Lithuania, Transylvania and Finland had been for centuries under rulers of other, bigger monarchies, so that the title of grand prince was superseded by the titles "king" and "emperor" there. Ivan IV of Moscow in the 16th century was the last sovereign to reign whose highest title was velikiy knyaz, until he assumed the rank of Tsar of Russia. "Velikiy knyaz" is a Russian title that is often translated as "grand prince" because there are no better equivalents in European languages. When Ivan IV's pre-tsarist title is referred to in English, however, it is usually as grand duke. Velikiy knjaz is also a Russian courtesy title for members of the family of the Russian tsar (from the 17th century), although the people who owned this title were not sovereigns. Terminology in Slavic and Baltic languages Velikiy knyaz (Meaning closest to Grand Prince but was generally translated as Grand Duke in state documents written in Latin), used in the Slavic and Baltic languages, was the title of a medieval monarch who headed a more-or-less loose confederation whose constituent parts were ruled by lesser knyazs ( often translated as "princes" ) . Those great knyazs' (grand princes') title and position was at the time sometimes translated as king, though kings, princes, and dukes seemingly initially did