Tsar Pea is a character from Russian folklore, a fictional tsar

Tsar

Tsar is a title used to designate certain European Slavic monarchs or supreme rulers. As a system of government in the Tsardom of Russia and Russian Empire, it is known as Tsarist autocracy, or Tsarism...

 whose name literally means "pea

Pea

A pea is most commonly the small spherical seed or the seed-pod of the pod fruit Pisum sativum. Each pod contains several peas. Peapods are botanically a fruit, since they contain seeds developed from the ovary of a flower. However, peas are considered to be a vegetable in cooking...

".

Expression

Appellations to this name are used in a number of expressions as a reference to times immemorial, such as "during the times of Tsar Pea". It is used in some preambles of Russian fairy tale

Fairy tale

A fairy tale is a type of short story that typically features such folkloric characters, such as fairies, goblins, elves, trolls, dwarves, giants or gnomes, and usually magic or enchantments. However, only a small number of the stories refer to fairies...

s . In common speech it often bears an ironical sense, as an indication to unbelievable or obsolete circumstances.

Actual character

There is a number of narratives, folklore and literary, where Tsar Gorokh is an actual character, rather than a simple time frame reference.

• War of Mushrooms, a folk fairy tale, mostly known in the literary redaction of Alexey Tolstoy
  Aleksey Nikolayevich Tolstoy
  Aleksey Nikolayevich Tolstoy , nicknamed the Comrade Count, was a Russian and Soviet writer who wrote in many genres but specialized in science fiction and historical novels...
  
  
• Tsar Pea, an ironic poem by Pyotr Vyazemsky
  Pyotr Vyazemsky
  Prince Pyotr Andreyevich Vyazemsky or Petr Andreevich Viazemsky was a leading personality of the Golden Age of Russian poetry.- Biography :...
  
   (1792-1878)
• A Fairy Tale about Glorious Tsar Pea, Dmitry Mamin-Sibiryak