Claudette Vance, the illegitimate eldest daughter of Count Vance, was barred from succession despite her capabilities. Raised more as a servant than a daughter, this forged her reserved, serious personality; she rarely shows emotion but maintains a strong sense of duty and integrity, earning respect from soldiers and commoners.
Her background includes long deployment as a general stationed at the frontiers of the Queen's territory, executing demanding military tasks. Renowned as the "Lord of Thundercloud" for her combat prowess and wielding the lightning-infused greatsword Thunderclap, she demonstrated high attack and reach in combat. Her responsibilities expanded to capturing her half-sister Leina, who abandoned her duties as heir, and later overseeing her other half-sister Elina during the Queen's Blade tournament.
After the tournament, Claudette assumed the throne when the original champion declined. As queen, she abolished the Queen's Blade tournament, promoted technological advancement through "Wizard Stones," and dismantled the traditional aristocracy to create merit-based opportunities. Her rule, however, became increasingly authoritarian, ruthlessly enforcing laws and leveraging military power to suppress opposition. Her abilities evolved to manipulate lightning without Thunderclap, utilizing the Wizard Stones' power.
In the Unlimited continuity, Claudette's hair and eyes turned violet. Her armor became entirely golden with black under-pieces, accompanied by a long split white cape. Thunderclap transformed into a black-and-gold weapon. While specific Unlimited narrative developments aren't detailed, her core attributes—focus on order, combat proficiency, and complex familial relationships—remain consistent. Her relationship with Elina is noted for its underlying affection, though Claudette struggles to express it openly.