The Familiar of Zero/Trivia

"Henrietta (to Louise): I find your lack of faith disturbing."
 * Fan Nickname: Pope Vittorio Serevare St. Aegis of Romalia is not well-liked on Spacebattles, where the prevailing nickname for him is "Pope McDongcopter".
 * "Titania" for Tiffania. Bonus points for Stealth Pun.
 * Melon-chan for Tiffania and Lemon-chan for Louise.
 * Hey It's That Voice: In the English Dub, Louise, Tabitha and Kirche have the same voice actresses as Nanoha Takamachi, Fate Testarossa and Arf, and none of them try to change their voices much. Granted, none of their characters are different from their others... Except for Louise to Nanoha. Incidentally, that part's hilarious to listen to when Louise really gets going.
 * Hell, later on, you can also hear Louise and Kirche in both Noel and Litchi and Homura and Kyoko.
 * Shout Out: Louise's outfit in Season 4, Episode 2 screams so much of A Certain Magical Index.
 * This line from Season 4, Episode 6: