Jarhanpur

Jarhanpur was a sister planet to Krypton.

Slave trade
The planet went through a number of civil wars. However, this eventually led to the planet's destruction, during which five of its leaders fled, one such taking up residence as protector of Earth.

Former inhabitants

 * Rama Khan
 * Margot

Behind the scenes

 * In the DC comics, Jarhanpur is a monarchically-led planet, the leader of which inherits the title of "Rama Khan".