Hildegard von Mariendorf is one of the principal characters in the series. She served as the New Galactic Fleets Chief Advisor
She later reigned with Reinhard von Lohengramm when she became his wife and Empress in U.C. 801.
Overcame with regret and emotional agony, Reinhard withdrew into his own quarters and Hilda entered to console him. Subconsciously realizing that his reliance on her has deepened past their professional relationship, he asked her to stay, and she agreed, determined to help him to the best of her abilities. The morning after, Reinhard came to Hildas home and proposed marriage, and Hilda did not immediately reply for the uncertainty whether she can truly give him happiness.
During the critical battle of Vermilion, she perceived that the situation was in Reinhards disfavor, and persuaded Generals Mittermeyer and Reuentahl
She also did not reveal her pregnancy to him until after the Urvashi affair and Reuentahls subsequent rebellion, which deepened the insight of both Hilda and Reinhard toward their own feelings. When peace was restored, Hilda accepted Reinhards second proposal, and they were married on January 19, U.C. 801. The officials of the empire greeted their new Empress with enthusiasm and joy.
800, in the Ninth Battle of Iserlohn, Hilda succeeded General Steinmetz to become the Fleets Chief Advisor, formally capable of representing the Emperor and command on his behalf on the battlefield. Conscious of her military position, Hilda withheld her political role and refused to advise Reinhard on political matters, despite his repeated requests for her counsel.In August of U.C. 800, Reinhard was attacked by an assassin who sought vengeance for Reinhards inaction in the Westland tragedy.
" He died at the age of twenty-five, with their son succeeding him and Hilda ruling as the Empress dowager. She was remembered by later historians as the person who nurtured the Lohengramm Empire to maturity.
On May the 14th, while Reinhard was away at war, Hilda give birth to a son, whom Reinhard named Alexander Siegfried von Lohengramm. Reinhards illness seriously exacerbated a mere sixteen days later and was diagnosed with a rare form mutative connective tissue disease, with no know cure. Despite the illness, Reinhard decided to return to the imperial capital for the sake of the people awaiting him there. On July the 18th, Reinhard and Hilda were re-united.
During the critical battle of Vermilion, she perceived that the situation was in Reinhards disfavor, and persuaded Generals Mittermeyer and Reuentahl to mobilize forces against the Alliance capital, turning the war to Reinhards tactical victory and saving his life. General Mittermeyer later praised Hilda that "her intelligence is worth more than a fleet." Her role gradually became more public after Reinhards coronation as the first Emperor of the new Lohengramm Dynasty. In the year U.C.
On July the 26th, the dying Reinhard said his final words to Hilda: "My Empress, you shall rule the universe more wisely than I. If you think setting up a constitution is the better way then so be it. The universe would be fine as long as the strongest and wisest among all the living governs it. If Alexander Siegfried lacks that ability, there is no need for Lohengramm dynasty to continue. Do everything as you wish; that is my greatest wish...