Lidvia Lorenzetti (リドヴィア＝ロレンツェッティ Ridovia Rorentsetti?)is a character introduced in Toaru Majutsu no Index. She is a radical amongst the Roman Catholic Church known as Mardi Gras (告解の火曜マルディグラ Kokkai no Kayō (Marudi Gura)?, lit. "Shrove Tuesday"). She is known for evangelizing to people that the Church would normally reject, and has invited converts to further carry out her evangelism.
She is a Roman Catholic born in the Vatican. She is in a very high position, but never tried to aim higher. Instead, she finds spreading the gospel to the world much more meaningful. She is a person who’ll do anything to spread the Word. As a reward, the Pope himself specially gave her a platinum staff that is decorated with silk, but she immediately sold it without thinking to finance her travels.
Those that were saved by Lidvia, and who want to save even more people, are geniuses who had never seen the light of day, and most of them were people like criminals and cult believers. Lidvia’s talent is in finding these talents that will normally be executed.
Not only does she have the ability to find hidden talent, she’s also able to control and manage problematic people.
Even if it’s the Roman Catholics, who’ll kill any sinner that they meet and burn any non-believer, they can’t formally attack anyone who’s properly recognized as converted. To the higher-ups who hate these problematic people, they view Lidvia as a thorn in their side. And to people like the Archbishop Laura, she’s a formidable opponent.