Sigyn and her path to become Empress of Multiverse
Sigyn was destined to become a ruler from the beginning - it took her some time to see it
In Thor 1, Sigyn, who just got bethrothed to Loki, quickly recognized the rapidly changing socio political schemes of Asgard, with Thor almost causing a whole another war with the Jotunns and thus banished, AND Loki's parentage is revealed, and thus worked to pull strings to help keep things in the Asgardian court afloat
Of course, she was shocked that the love of her life turned out to be the biological son of the one monster who killed her mother at first, yet she soon got better about it and never punished Loki for what Laufey has done to her home realm
In fact, Loki had trouble admitting that fear of losing her after that reveal. She comforts him that, while shocked, she will still love him and that he is never what Laufey is, and Loki and Sigyn shared a special night together in his chambers....( wink wink )
Anyway, Loki temporarily ruling Asgard also made her become more assured as a future ruler. With the Warriors 4 willingly commit treason against Loki just to try bring Thor back, Sigyn immediately worked to try persuade Loki to be more merciful to them even if they did commit treason, and even warned the Warriors 4 to ' be more careful ' after that one confrontation with Loki where Sif almost slapped Loki ( luckily, Fandral held her back for the sake of Sigyn )
And when Thor and Loki began to be at each other's throats, Sigyn helped Frigga to try stop the fighting between the 2 Princes. Alas, when Loki was first believed dead for a time, Sigyn went into deep grief, and agreed to join the new Asgardian Embassy to Mhurruk as a way to heal her grief
During all the hoopla in Avengers 1, Sigyn was unaware of what Loki has done cuz pretty much everyone else back in Asgard in tow tried to keep her out of the loop so as not to upset her further. She was learning all the cues of diplomacy across the Dark Dimension and found a trusted mentor figure in Empress Clea. But when she got a message from her father that she is needed back in Asgard....she was not prepared for what is to happen next
In Thor 2, once Sigyn returns to Asgard, she at first angrily confronts how she was kept out of the loop this whole time when Loki was on a mind controlled rampage, even begged - beseeched - on her knees to not execute Loki because she loves him so much. Odin and Frigga reassured her that Loki will not be executed, and Sigyn is permitted to visit Loki
The visits are frequent, and the stories they shared are numerous. After much telling from Loki, Sigyn was able to piece two and two together that her man was mind controlled all the time and felt guilty about not knowing AND not being able to save him from mind control just in time
Nevertheless, she helped nurse his psychological wounds from those torture back to health, and already began forming back ups to show the rest of Asgard the truth
On top of that, between being unwantedly pursued by Theoric and being a peacemaker between Thor's squad and Loki's party, Sigyn juggle with a lot of internal diplomacy in the Aesir court, just so that the Aesir court doesn't have to fall apart especially with Malekith's attacks. Her father was jn Alfheim, siding with Mundilfari and his court to fight against Malekith. Even worse, Malekith killed Mundilfari and tried to mind control Aelsa to marry him. That didn't work, so Malekith threw all of those Light Fae there to a glass prison where Malekith was prepared to BURN THEM ALIVE
Fortunately, Sigyn heard word of what happened to her father and her Light Fae friends, and telelorted herself to join a number of others to help save their asses. They all escaped as the glass prison exploded, and Sigyn helped several others to be refuged in Asgard for now
Back at Asgard, after Frigga died, Sigyn steps up to become a chief mediator of Thor and Loki, managing to expose Theoric being a spy for Malekith to the rest of Asgard ( causing all the other warriors of Asgard to have a race over who can have Theoric's head first ), and even got Thor and Loki to team up to fight Malekith. Loki ends up killing both Theoric and Malekith on the same day
Between Thor 2 and Thor 3, with Thor mostly traveling around, Loki took over as Odin form, with Sigyn as his chief strategist. She was strategic pillar of Loki's party, and she helped solve multiple problems
And then in Thor 3, with Thor and Loki off to Sakaar and her already becoming a Princess of Asgard, she basically becomes one of those in charge of the Aesir parties. With the Warriors 3 dead, Hela took over the throne by force, and Sif banished, Sigyn helps with rhe supplies of armies of rhe Aesir fleet and helped run the Coral Cove refuge in Alfheim. She showed truly efficient leadership despite all the high stakes around her
In Loki series, after being abducted, she escaped and helped many others around her to escape after several failed attempts, and then she got into the Dark Dimension variant refuge, and also personally asked Clea for help in help defending that refuge. Clea, who already has great disdain for the TVA, willingly joins in the project, and soon began installing powerful defense spells of the refuge to help ward off the multiverse madness
All those experienced helped Sigyn to become a powerful, wiser and remarkable Empress of the Multiverse. The volva has become a true Empress