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Koyulhisar is located in Turkey
Coordinates: 40°18′19″N 37°49′50″E / 40.30528°N 37.83056°E / 40.30528; 37.83056Coordinates: 40°18′19″N 37°49′50″E / 40.30528°N 37.83056°E / 40.30528; 37.83056
Country Turkey
Province Sivas
 • Mayor Osman Epsileli (MHP)
 • Kaymakam İsmail Sündük
 • District 1,041.76 km2 (402.23 sq mi)
Elevation 970 m (3,180 ft)
Population (2012)[2]
 • Urban 4,138
 • District 12,404
 • District density 12/km2 (31/sq mi)
Post code 58660
Website www.koyulhisar.bel.tr

Koyulhisar is a town, former bishopric, present Catholic double titular see and a district of Sivas Province of Turkey. The mayor is Osman Epsileli (MHP).


The ancient city of Nicopolis in Armenia (v.; Νικόπολις in ancient Greek) stood at this place and rose to Metropolis of Roman Lesser Armenia.

Historically, it has also been known as Koyluhisar and Koyunlu Hisar. This name seemingly hails from the Latin colonia (Roman colony), as it was also the (identical?nearby) site of Colonia (in Armenia), which became important enough to be a suffragan in the Late Roman Province of Armenia Prima, but faded like most in Asia Minor.

Titular see[edit]

In the late 19th century, the diocese was nominally restored as an Armenian Catholic titular bishopric of Colonia. As such it has incumbent of the lowest (episcopal) rank :

  • Santiago Costamagna, Salesians (S.D.B.) (1895.03.18 – 1921.12.09)
  • Edward Francis Hoban (1921.11.21 – 1928.02.21) (later Archbishop)

In 1929 it was promoted to titular archbishopric, in 1933 renamed Colonia in Armenia, avoiding confusion with Colonia in Cappadocia or German Colonia (Cologne). As such it is vacant, having had the following incumbents of the intermediary (archiepiscopal) rank :


  1. ^ "Area of regions (including lakes), km²". Regional Statistics Database. Turkish Statistical Institute. 2002. Retrieved 2013-03-05. 
  2. ^ "Population of province/district centers and towns/villages by districts - 2012". Address Based Population Registration System (ABPRS) Database. Turkish Statistical Institute. Retrieved 2013-02-27.