Dynastic Era The Dynastic Era was a period of time in the history of the Tapani sector that corresponded to 7328 BBY — 1582 BBY . Beginning with the end of the twenty - year Unification War , the Dynastic Era saw Prince Shey Tapani and his descendants rule over the new Tapani Empire . Shey Tapani was crowned Emperor of his newly formed dominion in 7328 BBY ( 5 , 392 Tapani calendar ) and over his long lifetime forged the foundations of a regional empire that lasted for nearly 6 , 000 years . The rise of the Tapani Empire did little to advance Shey ' s own House of Melantha since he was surprisingly generous at distributing power even - handedly to the nobles who survived the Unification War . A number of historians have commented that it was this impartiality towards the Houses that gave his empire such a good start . Shey Tapani ' s empire made a great mark on the region . He established a number of universities and research facilities and imposed a new code of law and a new calendar . The university system on Mrlsst was codified in 7308 BBY ( 5 , 412 Tapani calendar ) . Shey selected his homeworld of Procopia as the seat of his new empire . The Palace on Estalle Island was the center of regional power throughout the Dynastic Era . Shey Tapani ' s descendants consolidated his empire over the following 5 , 000 years . Sixteen dynasties ruled the Tapani Empire over the centuries , most hailing from one of the great houses of either Melantha , Mecetti , or Pelagia . High Lady Brezwalt III of House Mecetti was a member of one of these dynastic families . Some time before the Great Sith War the Tapani sector joined the Republic , although this may have been to a lesser degree of membership than full senatorial representation , presumably as an Allied Region . It would first send representatives to Coruscant much later , in 1486 BBY . Likewise , this contact led the Jedi Order to discover force - sensitive bloodlines in House Pelagia , although they would only actively recruit from it during the Federal Era . Around 4200 BBY a group called the Mecrosa Order was formed to prevent outsiders from attacking the House Mecetti . When High Lord Tritum XI married Viscountess Mireya of Vjun the order was corrupted by her Sith teachings and was turned into a Sith cult that fought for Exar Kun during the Great Sith War , one of the largest engagements of the Old Sith Wars ( 4015 BBY – 3951 BBY ) . The Pelagia Duplex Command Assault Gunship was created during this period to bolster Tapani ' s defenses in the turbulent time surrounding Exar Kun ' s violent campaign against the Galactic Republic . The Tapani sector was involved in further engagements of the Old Sith Wars . Between the Great Hunt events and the Mandalorian Wars a civil war took place in the Tapani sector that pitched the Jedi Order and House Pelagia against the Sith sponsored Mecrosa Order of assassins , who was sponsored by House Mecetti . House Melissus and House Barong were absorbed by House Mecetti during this conflict that became known as the Cleansing of the Nine Houses . During the Mandalorian Wars in 3963 BBY the Republic Senator Graw called for tariffs against the Tapani sector in response to their high prices . In the aftermath of the Great Sith War the Giju Passage trade route was blazed by Herglic scouts in 4003 BBY ( 8 , 717 Tapani calendar ) and within 25 years it was an established route of trade into Herglic space . This route was actually forged previously by ancient Herglic traders but was long abandoned . The angular starships of the Herglic traders became a familiar sight in Tapani Space and the bulky aliens brought with them substantial investment capital and a vibrant culture . With the establishment of stable trade pipeline the Empire experience a new surge of growth and expansion . It was at this time that the planets Neona and Tallaan became major trade worlds along the newly established routes . Over the following centuries Tallaan ' s modest orbital docks were turned into expensive shipyards . The Kappela was the final dynasty to rule over the Tapani Empire . The emperors of this dynasty presided over a steady decline into regional factionalism . The final end of the empire came in 1582 BBY ( 11 , 138 Tapani calendar ) when a cadre of military officers staged a coup and placed the government of the sector into the hands of a group of reformers and the Federal Era began . .