The Dune Encyclopedia
This article or section refers to elements that appear exclusively in The Dune Encyclopedia.
Konstantinos Atreides (79 BG - 10 BG), or Costin, was the youngest son of Demetrios Atreides, named for the Emperor Sheuset I's father.
He became Baron Menelaus the year before he died, in 11 BG.
Discrepancies[]
In Legends of Dune the ancestor of House Atreides and rival of Abulurd Harkonnen, who fought in the Battle of Corrin, is named Vorian instead of Demetrios. Vorian has only two sons, the twins Estes and Kagin, instead of three sons named Pausanias, Theseus and Konstantinos.