The lettering "EPISCOPA" has been interpreted by some to mean "bishop" and therefore that Theodora was a bishop.
ðə lˈɛɾɚɹɪŋ "ᵻpɪskˈoʊpə" hˈæzbiːn ɪntˈɜːpɹɪɾᵻd baɪ sˌʌm tə mˈiːn "bˈɪʃəp" ænd ðˈɛɹfoːɹ ðæt θiːədˈoːɹə wʌzɐ bˈɪʃəp.