Pleistarchus or Plistarch was the Agiad

Kings of Sparta

Sparta was an important Greek city-state in the Peloponnesus. It was unusual among Greek city-states in that it maintained its kingship past the Archaic age. It was even more unusual in that it had two kings simultaneously, coming from two separate lines...

 King of Sparta from 480 to 458 BC. He was the son of Leonidas I

Leonidas I

Leonidas I was a hero-king of Sparta, the 17th of the Agiad line, one of the sons of King Anaxandridas II of Sparta, who was believed in mythology to be a descendant of Heracles, possessing much of the latter's strength and bravery...

 and Gorgo. For the early part of his reign, his cousin Pausanias

Pausanias (general)

Pausanias was a Spartan general of the 5th century BC. He was the son of Cleombrotus and nephew of Leonidas I, serving as regent after the latter's death, since Leonidas' son Pleistarchus was still under-age. Pausanias was also the father of Pleistoanax, who later became king, and Cleomenes...

, acted as regent because Pleistarchus was not of age.

Popular culture

A young Pleistarchus has been portrayed by Giovani Cimmino in the 2007

2007 in film

This is a list of major films released in 2007.-Top grossing films:Please note that following the tradition of the English-language film industry, these are the top grossing films that were first released in the USA in 2007...

 blockbuster 300

300 (film)

300 is a 2007 American fantasy action film based on the 1998 comic series of the same name by Frank Miller. It is a fictionalized retelling of the Battle of Thermopylae. The film was directed by Zack Snyder, while Miller served as executive producer and consultant...

, inspired by the same graphic novel by Frank Miller

Frank Miller (comics)

Frank Miller is an American comic book artist, writer and film director best known for his dark, film noir-style comic book stories and graphic novels Ronin, Daredevil: Born Again, Batman: The Dark Knight Returns, Sin City and 300...

 and Lynn Varley

Lynn Varley

Lynn Varley is an award-winning colorist, notable for her collaborations with her former husband, comic book writer/artist Frank Miller, whom she divorced in 2005.-Biography:...

.

A young Pleistarchus (titled Leo Jr.) is portrayed by Hunter Clary in the 2008 movie Meet the Spartans

Meet the Spartans

Meet the Spartans is a 2008 parody film directed by Jason Friedberg and Aaron Seltzer. Similar to past movies, such as Scary Movie, Date Movie, and most recently Epic Movie, it directs parodies at various films. Although it references many movies, TV shows, people and pop cultural events, it...

.