Thizica was a town in the Roman province of Africa Proconsularis. It served as a Latin Catholic titular see. The city's ruins are located at present-day Techga or Tchegga in northern Tunisia.
Bishopric
The names of two early bishops of the see are known:
The modern use of the diocese as a titular see began in 1967. There have been four bishops since that time:
Of these, O'Brien held the personal title of archbishop.
References
Diocese of Thizica Wikipedia(Text) CC BY-SA