Thayssa Jin

"The Sovereignty is not your enemies, for we were only pawns for a power greater then you can imagine. They seek only destruction to all that are not of their kin and we will all burn...if we do not unite to survive the coming storm."

- Queen Thayssa Jin to Admiral Shepard

Queen Thayssa Jin is the Hierarchy of the Sovereignty, and was the one that lead her people across the threshold gateway into theCerberus Galaxy and began the Cerberus Galactic Conflict at the presumed orders of the Hierarchs of Adventos. Thayssa Jin lead the Cybros efforts to defeat the Ra'dam Federation and the Corvanan Combine, but due to being eventually out maneuvered and the impatience of the Dominion from afar, the Sovereignty began to pull back to defend the proto-planet of Iyo, which lead to the titanic Battle of Iyo and saw Thayssa defeated by commanders of the allied forces shortly before the Iyo gateway was activated and revealed hundreds of battle-readied Cybros ships exiting the threshold and laying waste to all that stood before them - the Sovereignty Included.

Thayssa survived the battle, escorted by Dela'core Falligus and what was left of the Queen's Guard as the Sovereignty was torn apart by loyalists of the Dominion and Thayssa' separatists and she would live on to providing critical information to surviving Federation and Combine officials about the truth of the Cybros Invasion and then conducting the Raid of Iyo and disabling the portal system. This has prevented further reinforcements from Adventos and given Cerberus more time to recover from the Galactic Conflict.

In the years before the Eternal War, the Sovereignty has been engaged in a guerilla fight for survival against Dominion Forces in their pocket of space in the Cerberus Galaxy. The Sovereignty had made use of smaller craft that could maneuver easier and flew faster in lightspeed then the larger and often invincible Cybros starships. She is believed to be leading the Sovereignty from a hidden enclave in a star cluster designated as Sanctuary.

Early History
"Thayssa was such a believer in the ways of Adventos, her every will seemly uplifted her from the lowly caste into the echelon that lead our people to the future...so when she lost faith, she lost everything imaginable."

- Hierarchy Eid'on on Thayssa Jin during her time in the Dominion.

Thayssa was born on Meriden in the Adventos Galaxy somewhere between 2000 BEW and 1500 BEW during the time of the Dominion. Thayssa was a member of the Adjudicator, destined to maintain both the warrior heart and the spiritual mind in all things and attended to her duties faithfully to the expectations. She would attend the teachings of her elders that would install the values of her people, to be watchful and superior to all other living things.

Thayssa would later begin to lead her own people across Adventos, purging unrulily insurgencies agaisnt the Cybros and laying waste to entire planets as the will of Adventos demands. But it was also during this period of her life that she began to have differ philosophical beliefs in Advan.