Siwenna is a planet prominent in Foundation and Foundation and Empire by Isaac Asimov. Psychohistorian: Hari Seldon Foundation is the first book in Isaac Asimovs Foundation Trilogy (later expanded into The Foundation Series). ... Foundation and Empire Foundation and Empire is a novel written by Isaac Asimov in 1952. ... Dr. Isaac Asimov enthroned with symbols of his lifes work (Rowena Morrill) Isaac Asimov (c. ...

It was capital of the Normannic Sector of the Galactic Empire, and once one of its richest planets. Shortly after 100 F.E., Wiscard, the viceroy of Siwenna, rebelled. Most of the subjects remained loyal to the Empire, and overthrew Wiscard, lead by Patrician Onum Barr. The Imperial Admiral despatched to Siwenna was angered at this, because it robbed him of his glory. So, he put most of the population of Siwenna under the atom blast, charging them with the crime of rebelling against an Imperial viceroy (Wiscard). Most of its population was killed, and Barr himself lost five sons and a daughter; only his sixth son, Ducem Barr, survived. In Isaac Asimovs Robot/Empire/Foundation series of novels, the Galactic Empire is an empire consisting of planets settled by humans across the whole galaxy. ...

Because of the rampant destruction on Siwenna, the Admiral set himself up as viceroy, but moved the capital of the Normannic Sector to Orsha II. Between this time and its conquest by Bel Riose in 200 F.E., Siwenna rebelled five times, eventually becoming independent. When the campaign led by Riose against the Foundation ended, the Siwenna province transferred to the Foundation, the first Imperial province to pass directly from the Empire to the Foundation. Orsha is a fictional stellar system in the Normannic Sector of the Galactic Empire, mentioned in Foundation by Isaac Asimov. ... In Isaac Asimovs Foundation series, the fictional character Bel Riose was the last strong General of the Galactic Empire, Commander of the legendary Twentieth Fleet, who eventually came to be known as the Last of the Imperials, and earned this title well. ...

After the beginning of the Foundation Era, Siwenna began to run downhill. 'The physical resources of twenty-five first rank planets take a long time to use up. Compared to the wealth of the last century, though, we have gone a long way downhill—and there is no sign of turning, not yet,' –Onum Barr, to Hober Mallow, 150 F.E. About 50 years before, Stanel VI died, ending a reign under which Siwenna came close to achieving its ancient prosperity. Hober Mallow is a master trader in the Foundation. ...

Little is known of Siwennian culture, except that when Riose first met Ducem Barr, it was 'socially impossible not to drink tea on Siwenna.'