Poritrin is the third planet in the star system Epsilon Alangue, and an established but largely quiet agricultural world within the Known Universe. Poritrin had a plentiful supply of water, a long growing season, and a gentle climate. It was inhabited since before the Guild times. Farsi, an ancient Terran language was a major language of the Isfahan-e nou area of Poritrin. It came to be in the Zensunni memories, their home world, forgetting Terra. There the legend of Nilotic al-Ourouba was created instead. The Fremen remembered Poritrin as their planet of origin in their songs.