City and Common
Location in Skikda Province
Location in Algeria
Coordinates: 37°0′20″N 6°33′37″E / 37.00556°N 6.56028°E / 37.00556; 6.56028Coordinates: 37°0′20″N 6°33′37″E / 37.00556°N 6.56028°E / 37.00556; 6.56028
Country Algeria
 • TypeMunicipality
 • Total9 sq mi (24 km2)
 • Total35,682
Time zoneUTC+1 (CET)
ISO 3166 codeCP

Collo (Tamazight:ⴰⵍⵇⵍ) (Arabic: القل‎) was an ancient Roman– a city of the Ottoman empire and Berber. Located in the northern Skikda Province, Algeria. It was the capital and one of three municipalities of Collo District, and a Catholic titular episcopal see under its Roman name Chullu'. In 1998, it had a population of 27,800.[1]


In Roman times, Collo was a city in the province of Numidia, called Chullu. At the joint Conference of Carthage (411) that brought together Catholic and Donatist bishops of Roman Africa, Chullu was represented by the Catholic bishop Victor and the Donatist Fidentius. In 484, Quidvultdeus was one of the Catholic bishops that the Arian Vandal king Huneric summoned to Carthage in 484 and then exiled. Bishop Aurelius of 256 is assigned to this diocese by 19th-century Morcelli, but to Cillium (modern Kasserine) by 20th-century Berthier and Mesnage.[2][3][4]

In 1282, king Peter III of Aragon led an expedition to Collo, in proclaimed support of a rebellion against the ruler of Tunis. The rebellion had collapsed before Peter arrived, but he kept his army there for several weeks until, in the wake of the Sicilian Vespers, envoys from Sicily came to Collo to offer him its throne. The resulting war continued until 1301.

Historical population[1]
Year Population
1901 3,300
1954 7,000
1966 10,800
1987 21,100
1998 27,800

Titular bishopric

In 1833, the Roman diocese was nominally revived as a titular see of the lowest (episcopal) rank. So far, it had four incumbents:

See also


  1. ^ a b Archived March 3, 2016, at the Wayback Machine
  2. ^ Stefano Antonio Morcelli, Africa christiana, Volume I, Brescia 1816, p. 149
  3. ^ A. Berthier, v. Cullu in Dictionnaire d'Histoire et de Géographie ecclésiastiques, vol. XIII, Parigi 1956, coll. 1103–1104
  4. ^ J. Mesnage L'Afrique chrétienne, Paris 1912, pp. 274–275

Sources and external links