Altrouge Brunestud (アルトルージュ・ブリュンスタッド, Arutorūju Buryunsutaddo?), also known as Vampire Princess of the Dead Apostles (死徒における吸血姫, Shito ni Okeru Kyūketsu Hime?) and the Eclipse Princess of Black Blood (黒血の月蝕姫, Kurodji no Gesshoku Hime?), is the ninth of The Twenty-seven Dead Apostle Ancestors.