The site of Abbir Germaniciana is in the coastal region of North Africa, known as the
Magreb. However, its exact location has never been verified. There are several theories: • The historian
Adolf Harnack in the early 20th century suggested that Abbir Germaniciana was near the town of
Membressa in the
Medjerda River Valley in present-day Tunisia. • The writer
André Mandouze and academic Sylvain Destephen in 1982 theorized that the village of Henchir el Naam, near
Sebkhet el Kourzia Lake in Tunisia, was the location of
Abbir Maius, another lost Roman city. That would place Abbir Germaniciana on the
Meliane Wadi in Tunisia • The
Ravenna Cosmology, an 8th century geographic work, lists Abbir Germaniciana as "the Germana"
. The
Antonine Itinerary, a listing of
Roman roads created in the 8th century, lists the city as "Ad Germani
". Both sources place it near the former Roman colony of
Theveste in present-day Algeria. • Other sources suggest that the Roman ruins of
Ksour-el-Maïete in Tunisia are actually Abbir Germaniciana. ==Bishopric==