Teopista is the Italian, Spanish and Portuguese form of Theopista:
• 2nd-century martyr Theopista, known in Italian as Teopista:
https://it.wikipedia.org/wiki/Teopista_martire (in Italian)
• 3rd-century virgin martyr and saint Theopista, known in Italian as Teopista:
http://www.santiebeati.it/dettaglio/91423 (in Italian)
• see pages 234 and 235 of "Diccionario de Nombres de Personas" written by José M. Albaigés Olivart:
https://books.google.de/books?id=A_KHaYiixzwC&pg=PA234 (in Spanish)
•
https://es.wikipedia.org/wiki/Eustaquio_de_Roma (in Spanish; mentions Teopista)
•
https://pt.wikipedia.org/wiki/Ciro_e_Jo%C3%A3o#Martírio (in Portuguese; mentions Teopista)
In the future, keep in mind that Greek
Theo- usually becomes
Teo- in Italian, Spanish and Portuguese (sometimes there will be a diacritic, and sometimes there won't be). There are other languages where this happens (such as Georgian), but the aforementioned three languages are probably the best known or at least the easiest to remember.
Also compare:
https://www.behindthename.com/names/pattern/teo* (copy and paste this link; be sure to include the asterisk at the end!)
Forchta in biuonga quamon ouer mi, in bethecoda mi thuisternussi.
In ic quad: "uuie sal geuan mi fetheron also duuon, in ic fliugon sal in raston sal?"