Thizica was a civitas in the Roman province of Africa Proconsularis.
The city's ruins are located at present-day Techga or Tchegga in northern Tunisia.
[1][2] The names of two early bishops of the see are known:[1] 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.
This article about a Roman Catholic titular see in Africa is a stub.