Heaven's Memo Pad/WMG

Alice is a descendant of Victorique and Kujo.
The similarities:


 * Both Victorique and Alice are shut ins with little in the way of social skills.
 * However, this does nothing to prevent them from solving mysteries.
 * Both keep assistants to gather evidence for.
 * Both have a "thing" for their assistants.
 * In Alice's case, it's much less clear just what her feelings for Narumi are, but she seems to have a crush on him.
 * Both are picky eaters.

Unlike many "X is a descendant of Y" theories, these three have the benefit of being connected by country. Alice seems to have gotten Victorique's personality and Kujo's looks.