Vnislav was the fourth of the seven Bohemia

Bohemia

Bohemia is a historical region in central Europe, occupying the western two-thirds of the traditional Czech Lands. It is located in the contemporary Czech Republic with its capital in Prague...

n mythical princes between the (also mythical) founder of the Přemyslid dynasty

Premyslid dynasty

The Přemyslids , were a Czech royal dynasty which reigned in Bohemia and Moravia , and partly also in Hungary, Silesia, Austria and Poland.-Legendary rulers:...

 Přemysl the Ploughman

Premysl, the Ploughman

The Czechs name Přemysl, the Ploughman, as the mythical ancestor of the Přemyslid dynasty, containing the line of princes and kings which ruled in the Lands of the Bohemian Crown from 873 or earlier until the murder of Wenceslaus III in 1306.-Story:According to a legend, Přemysl was a peasant of...

 and the first historical prince Bořivoj. The names of the princes were first recorded in Cosmas chronicle

Cosmas of Prague

Cosmas of Prague was a Bohemian priest, writer and historian born in a noble family in Bohemia. Between 1075 and 1081, he studied in Liège. After his return to Bohemia, he became a priest and married Božetěcha, with whom he probably had a son. In 1086 Cosmas was appointed prebendary of Prague, a...

 and then transmitted into the most of historical books of the 19th century including František Palacký

František Palacký

František Palacký was a Czech historian and politician.-Biography:...

's The History of the Czech Nation in Bohemia and Moravia.

One theory about the number of the princes is propped on the frescoes on the walls of the Rotunda

Rotunda (architecture)

A rotunda is any building with a circular ground plan, sometimes covered by a dome. It can also refer to a round room within a building . The Pantheon in Rome is a famous rotunda. A Band Rotunda is a circular bandstand, usually with a dome...

 in Znojmo

Znojmo

Znojmo is a city in the South Moravian Region of the Czech Republic, near the border with Lower Austria, connected to Vienna by railway and road . The royal city of Znojmo was founded shortly before 1226 by King Ottokar I on the plains in front of Znojmo Castle...

, Moravia

Moravia

Moravia is a historical region in Central Europe in the east of the Czech Republic, and one of the former Czech lands, together with Bohemia and Silesia. It takes its name from the Morava River which rises in the northwest of the region...

 but Anežka Merhautová claimed that the frescoes depict all the members of the Přemyslid dynasty including the Moravian junior princes.

Origin of the name

Vnislav's name is a typical Slavonic

Slavic languages

The Slavic languages , a group of closely related languages of the Slavic peoples and a subgroup of Indo-European languages, have speakers in most of Eastern Europe, in much of the Balkans, in parts of Central Europe, and in the northern part of Asia.-Branches:Scholars traditionally divide Slavic...

 name ending in -slav (such as Wenceslas

Václav

Václav is a Czech male first name of Slavic origin, sometimes translated into English as Wenceslaus or Wenceslas . These forms are derived from the old Slavic/Czech form of this name: Vencslav.- People :...

, Vladislav

Vladislav

Vladislav is a Slavic male given name, sometimes confused with/treated as the same as Ladislav...

, Vítězslav etc.) but there is confusion about the first part. Záviš Kalandra

Záviš Kalandra

Záviš Kalandra was a Czechoslovak historian and theorist of literature executed by Communists on charges of conspiracy and treason....

 thought the names of the seven princes were cryptical names of ancient Slavonic days of the week - Vnislav being the fourth - Wednesday, in Latin dies Mercurii whereas Vnislav could refer to a Slavonic god of profit. Another theory says that the names were mistaken from a coherent and partly interrupted old Slavonic text.

Seven mythical princes after Přemysl

Mythical Princes of Bohemia
Nezamysl Nezamysl Nezamysl was the first of the seven Bohemian mythical princes between the founder of the Přemyslid dynasty Přemysl the Ploughman and the first historical prince Bořivoj...
Mnata Mnata Mnata was the second of the seven Bohemian mythical princes between the founder of the Přemyslid dynasty Přemysl, the Ploughman and the first historical prince Bořivoj...
Vojen Vojen Vojen was the third of the seven Bohemian mythical princes between the founder of the Přemyslid dynasty Přemysl the Ploughman and the first historical prince Bořivoj...
Vnislav
Křesomysl Kresomysl Křesomysl was the fifth of the seven Bohemian mythical princes between the founder of the Přemyslid dynasty Přemysl the Ploughman and the first historical prince Bořivoj...
Neklan Neklan Neklan was the sixth of the seven Bohemian mythical princes between the founder of the Přemyslid dynasty Přemysl the Ploughman and the first historical prince Bořivoj...
Hostivít Hostivít Hostivít was the last of the seven Bohemian mythical princes between the founder of the Přemyslid dynasty Přemysl the Ploughman and the first historical prince Bořivoj...