Henrietta de Tristain
アンリエッタ・ド・トリステイン
The Princess of Tristain. She is loved by her nationals and is also an old friend of Louise. Later, she becomes the queen of Tristain and decides to defend Tristain from the Albion invasion after the assassination of the Albion prince.
She is named after Henrietta Anne, the youngest daughter of Charles I of England and sister of Charles II of England.
She has a crush on Saito.