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City and Common
Location in Skikda Province
Location in Skikda Province
Collo is located in Algeria
Location in Algeria
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Country  Algeria
Province Skikda Province
District Collo District
APC 2012-2017
 • Type Municipality
 • Total 9 sq mi (24 km2)
Population (2008)
 • Total 35,682
Time zone CET (UTC+1)
ISO 3166 code CP

Collo (Arabic: القل‎‎) is the capital, and one of three municipalities, of Collo district in Skikda Province, Algeria, and a Catholic titular episcopal see under its Roman name Chullu. In 1998 it had a population of 27,800.[1]


In Roman times it was a city in the province of Numidia, called Chullu. At the joint Conference of Carthage that in 411 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 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:

  • Marc Lacroix, O.M.I. (1968.10.25 – 1970.11.24)
  • Joseph Edra Ukpo (later Archbishop) (1971.04.24 – 1973.03.01)
  • Franco Mulakkal (2009.01.17 – 2013.06.13)
  • Varghese Thottamkara, Lazarists (C.M.]]) (13.06.28 – present)


  1. 1.0 1.1
  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

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