Caliabria

Caliabria was a city and the seat of a diocese founded in the 7th century in Visigothic Spain and is now a Latin titular see of the Catholic Church.

Although Enrique Flórez, writing in 1755, said that the location of what had been the town that gave its name to the see was then unknown, scholars generally accept the statements made by several sources, some of them earlier than Flórez, that the site of Caliabria was on a high hill by the river Douro, near Almendra, Vila Nova de Foz Côa, Portugal. The ruins are now officially signposted as "Ruínas de Calábria".

However, Coura, near Viseu, and Fermoselle near Zamora each have a champion, as do Vilanova de Foz Côa and Castelho Melhor, places closer to the generally accepted location.

Before becoming a diocese, Caliabria was a mere parish of the Diocese of Viseu, which was then part of the kingdom of the Suebi or Suevi of Gallæcia. It is mentioned as such in a document of the time of that kingdom drawn up between 572 and 589, to which was later added the annotation "quae apud Gotos postea sedes fuit" (which later, under the Goths, who annexed the kingdom in 585, was a diocese). The exact date of its erection as a diocese under the Visigoths is disputed, one scholar placing it after 621, while another thinks it occurred in the reign of Witteric (603-610), or it may be as early as 569, under the Suebi.

It was a suffragan see, apparently of the Archdiocese of Mérida (Estermadura, Spain).

The names of four Bishops of Caliabria are recorded among the participants in councils held at Toledo and Mérida between 633 and 693:

...
Wikipedia