Brilliant, but Lazy: Not lazy so much as "hates his situation too much to care". He's very intelligent, quick to learn foreign languages and is resourceful, but misses Paris so much even living with a kind English family that he refuses to give his tutors an easy time.
Cassandra Truth: Tries to tell Topolain about the voice he heard warning him to run away, but the magician doesn't listen.
Innocent Blue Eyes: Count Kalliovski notices her "bewitching" blue eyes, and she's certainly innocent.
Parental Neglect: Her father pretends she doesn't exist living at a convent until he's forced to acknowledge her.
Proper Lady: Despite her awful homelife, she always remains sweet and gentle.
Shrinking Violet: She's shy and rather timid for most of the book.
Silk Hiding Steel: Sidonie is very gentle, quiet, even timid, but she has hidden strength.
So Beautiful, It's a Curse: The Count targets her for her innocent beauty that is so much like her mother's.
The Ugly Guy's Hot Daughter: The Marquis is homely and the absurd fashions don't help, while Sido is very pretty.
What Beautiful Eyes!: When they first meet, Kalliovski tells the Marquis his daughter has these.
Count Kalliovski
And Now You Must Marry Me: He makes Sido stay in prison (though he cares for her when she is sick) until she agrees to marry him. But eventually, he implies even if she doesn't, he's going to rape her.
I Have You Now, My Pretty: He plans on having sex with Sido when they're married whether or not she consents.
Villainous Crush: He had one on Yann's mother and is ashamed that he was so vulnerable to love. He also had one on Sido's mother though that attraction might have been based more on lust.
Wicked Cultured: He's wealthy, well-traveled, refined, educated, and acquainted with numbers of French aristocrats.
Jerkass: He's a shallow, snobby, mean person who hates the poor and his own daughter.
Parental Neglect: Had been ignoring Sido for most of her life when he shipped her off to school to get her off his hands, and shows little less than contempt when she comes home.
Rich in Dollars, Poor in Sense: Though it turns out he's been wasting all the money on fashions to the point that he's becoming penniless, so poor in sense, indeed.
◊ of the book she is portrayed as a tanned blonde, not a pale dark-haired girl.
