Caterina

Caterina (カテリナ) is a minor character in Toaru Majutsu no Index, and is a member of the Agnese Forces.

Background
She was an orphan and was taken in by the Roman Catholic Church to be raised as a nun by them, here, she was acquainted with Agnese Sanctis, Lucia, Angelene, and Agata.

Anglican Church–Russian Orthodox Church Prewar Conference
Caterina is confirmed to be staying in the Anglican Church Women's Dormitory with the rest of the Agnese Forces during Sasha Kreutzev's visit to the Dormitory when she is mentioned by Angelene in a conversation with Kanzaki Kaori.