No other fictional princesses starting with the letter V?
In converse, which letter did you have the most candidates for?
I am more knowledgeable about certain video game franchises than with motion picture franchises, but I know of other contenders I am sure you could have considered, if you had not already:
Daisy (Super Mario Land)
Diana of Themyscira a.k.a. Wonder Woman (All Star Comics #8)
Elena (Street Fighter III: New Generation)
Kaguya-hime (Taketori Monogatari/The Tale of the Bamboo Cutter)
Hilda (The Legend of Zelda: A Link Between Worlds)
Kitana (Mortal Kombat)
Midna (The Legend of Zelda: Twilight Princess)
Ororo Munroe a.k.a. Storm (Giant-Size X-Men #1)
Rosetta/Rosalina (Super Mario Galaxy)
San (Mononoke-hime/Princess Mononoke)
Sally Acorn (Sonic Miniseries #0)
Mulan would not count as she never held a royal title.
Wait! There is one more entry:
Kenny McCormick (South Park: The Stick of Truth)