Gnomish Queen of Nalos during the time of the Cartographers. The Immortal Knight Imbri fought under her banner.

“Queen Gimnax’s ambitions are noble in every sense. She is a champion of law and order, but she insists on placing herself in the seat of supreme power, no matter who objects.“ - Imbri, Festival of Heroes (GS-ADV1)

Queen Gimnax and Gulpax are former lovers. Their differing view points caused a rift to expand between the two of them.

She still harbors feelings for Gulpax, but the rift is too large for them to overcome.

““I think she still cares, she may even still love me, but I do not have her trust. She thinks I’m plotting against her, but I just want to be left alone.” - Gulpax - Servants of Azema (GS-ADV2)

You see Queen Gimnax seated by a campfire. She has a bundle of old letters in her lap. One by one, she tosses them into the fire. You notice that some were written by the queen herself. Others bear the signature of Gulpax the Crafter. - The Frozen Expanse (GS-ADV6)

As reported by the Immortal Knight Imbri, the growing conflict between Nalos and the Dragul began when the city-states did not wish to give up their freedom and join the crown;

“The queen offered every race a seat on her royal council, but many have refused her and joined together as the Dragul. … Their desire for freedom may be admirable, but the Dragul have sown violence and chaos at every turn, even after Queen Gimnax offered them a pathway to peace.” - Imbri, Festival of Heroes (GS-ADV1)

Though queen, Gimnax does not hold herself loftily above her subjects, instead working directly with them;

He escorts you beneath a large canopy tent where you discover the queen. She stands shoulder-to-shoulder with Minotaur architects and Human workers as they pore over construction plans, dressed in the same simple green tunic as those around her. - Servants of Azema (GS-ADV2)