The Hereditary Western Hemisphere-ian Aristocracy of the Semotuns was created around 52 BBY after the fall of the Royal Semotus Sector Autocracy. The Western part of Asseron seceded from east when the Autocracy was failing and the Semotuns and Solustians began disagreeing about Defensive and Political manners and the Solustians began thinking they were better than Semotuns and so when the Semotuns tried to pull away, The Royal Semotus Sector Autocracy attacked the Semotus Rebellion and they held against the government in the Battle of Västlig.