Gallatin is a planet ruled by House Atreides as Siridar Dukes. It was a colony where they moved from Hestia to escape the massacre of the First Republic. In 4552 AG, Emperor Atreus Atreides Atreides restored the Imperium and appointed his Cousin Duke Pausanias VIII Atreides as Siridar Duke of Gallatin. During 8711 AG it was ruled by Duke Philippos Atreides. His brother built Castle Caladan. Eventually Elrood VIII granted Caladan to Paulos XVI Atreides who moved his family there in 8722 AG. This article is a : It may require more information.