Her Royal Highness the Tsaritsa is actually a gentle soul. Too gentle, in fact, and that's why she had to harden herself. Likewise, she declared war against the whole world only because she dreams of peace.
With supreme rule over Snezhnaya, she uses her loyal followers in the Fatui to manipulate and intimidate the other nations of Teyvat. She is targeting the other Archons' Gnoses for reasons unknown, though it likely relates to her goal of "burning away the old world."
Sorry... to also have you shoulder the grievances of the world.
Since you could endure my bitter cold, you must have the desire to burn?
Then, burn away the old world for me.The Tsaritsa, in the description for Shivada Jade Gemstone
The Tsaritsa is not one of the original members of The Seven who emerged victorious at the end of the Archon War. When and how she ascended to the position of Cryo Archon is yet unknown, but it was some time before the incident 500 years ago which left her deeply changed.
In the Teyvat Chapter Storyline Preview, Dainsleif says of the Tsaritsa and Snezhnaya: "She is a god with no love left for her people, nor do they have any left for her. Her followers only hope to be on her side when the day of her rebellion against the divine comes at last." This most likely refers to Celestia, or someone or something located on Celestia.
Little is known about the Tsaritsa, but many of her followers are deeply devoted to her. Whether it is out of genuine faith or fear is unclear, but Tartaglia's dedication to her is at least real: he describes her as "a gentle soul that had to harden herself". He also says that her actions, while having seemingly engulfed the world in war, are meant to bring about peace. His character stories also describe her as a "true warrior."
An incident 500 years ago left her deeply embittered and changed. Whatever happened back then, Barbatos drew her ire; she has Signora attack and steal his Gnosis without warning, which is a stark contrast compared to the way she negotiates with Morax for his.
While talking about the kites that represent The Seven, Zhongli, Morax's vessel, doesn't ascribe a trait to her like he does with the other Archons; he begins saying "as does that which the Cryo Archon once..." before trailing off with a sigh. This suggests that whatever trait he was about to say, she no longer possesses. Dainsleif states that the Tsaritsa originally embodied love, but refers to it in the past tense, indicating that her ideals have since changed.
Nothing is known about the Tsaritsa's appearance besides the fact that she uses a female vessel. Tartaglia's character stories describe her gaze as "cold yet pure."
At some point in the history of The Seven, the Tsaritsa inherited her position from the previous Cryo Archon. She is not the original archon who emerged victorious from the Archon War.
During the third act of the Prologue, in "Ending Note," the Tsaritsa sends Signora to steal Venti's Gnosis from him. While Venti is well aware of their falling out after the incident of 500 years ago, her drastic methods leave him baffled.
Compared to her treatment of Venti, Tsaritsa is much more civil with Zhongli. She sends Signora to him as well, but instead of having her fight and steal his Gnosis, she forges a contract with him in exchange for it. Whatever she offered him, he apparently found it a lucrative deal — one worth exchanging his godhood for. It is implied that he may even sympathize with her goal, even if he is not interested in assisting her directly.
- Among The Seven, the Tsaritsa's ideal is currently the only one left unconfirmed. In the Teyvat Chapter Storyline Preview, Dainsleif calls her a "god with no love left" in the opening sentence about the Snezhnaya Chapter, which is where he mentions all other Archons' ideals during their respective chapters. Zhongli avoids mentioning her ideal when he names the other Seven's during "Downtown," suggesting her ideal may have changed since the cataclysm.
- In the Chinese name for Shivada Jade Gemstone and its item series, "Shivada" is instead 哀叙冰 Āi Xù Bīng, "Grieving Ice" (literally, "Grief-Narrating Ice"). The word for "grief," 哀 Āi, uses similar sounds as the word for "love," 爱 Ài.
- Despite her cold nature, she is still one with a kind heart, but she was traumatized by what happened 500 years ago. Speculation says that she was traumatized by the Archon War. Others say it's the Unknown God's power which has left her in such a state.
- Tsaritsa is the female equivalent of a Tsar. The title has multiple spellings including Tsarina.