Tribhuvana Mahadevi I

Some historians believe that she might have ruled as long as 863 A.D abdicating the throne for her grandson Santikara II after he turned older and eligible to run the administration.

The Dhenkanal charter of queen herself gives an indication about how the Eastern Gangas of Kalinga were first defeated by the earlier Bhaumakara king Sivakara I and then restored to power after they accepted his suzerainty, establishing relationship of good faith between the two royal families which could have ended up in matrimonial alliances.

Talcher plate of Subhakara IV states that during her rule the country advanced in administration, enemies were destroyed, the glory of the kingdom spread abroad and the people lived in harmony.

Her Dhenkanal charter talks about how Bhaumas exhausted treasures of their vast empire on religious works in order to enlighten their own country and others, and decorated the earth by constructing in unbroken continuity, various mathas, monasteries and temples.

[10] She was able to suppress internal rebellions and expel the enemy forces of the Rashtrakutas and Palas with the help of her father securing the kingdom from any external threats.

[11] She served as an example for a line of another six descendant female rulers who ruled in the Bhaumakara kingdom in their own rights despite the availability of heirs and two of which even adopted her royal epithet as Tribhuvana Mahadevi.