Trajanopolis has been variously identified; Radet locates it at Çarikköy, about three miles from Giaurören towards the south-east, on the road from Uşak to Suzusköy, a village abounding in sculptures, marbles and fountains, where the name of the city may be read on the inscriptions. However, Ramsay continues to identify Trajanopolis with Giaurören. Modern scholars place it near Ortaköy.
It was founded about 109 by the Grimenothyritae, who obtained permission from Roman emperor Hadrian to give the place the name of his predecessor. It had its own coins. Hierocles calls it Tranopolis.
In the Notitiae Episcopatuum, Traianopolis is usually called Tranopolis, and is mentioned as an episcopal see up to the 13th century, among the suffragans of Laodicea, the capital and Metropolitan see of the Roman province of Phrygia Pacatiana Prima.
- John, present at a Council of Constantinople in 459 under the Patriarch Gennadius I
- John, at the Council of Constantinople under Patriarch Menas in 536
- Asignius, at the Second Council of Constantinople in 553
- Tiberius, at the Council in Trullo in 692
- Philip, at the Second Council of Nicaea in 787
- Eustathius, at the Council of Constantinople (879-880).
- Another, doubtless more ancient than the preceding, Demetrius, is known from one inscription.
The bishopric of Trajanopolis is included in the Catholic Church's list of titular sees, as the diocese was nominally restored in the 17th century as a titular bishopric, initially as just Traianopolis, renamed since 1933 Trajanopolis in Phrygia, thus avoiding confusion with its Thracian namesake (in Roman province Rhodope).
It is vacant, having had the following incumbents, of the lowest (episcopal) rank, with a singular archiepiscopal exception :
- Jerónimo Zolivera (1672.02.22 – 1683.01.11)
- Juan José de Aycinena y Piñol (1859.04.15 – 1865.02.17)
- Giulio Marsili, Friars Minor (O.F.M.) (1873.11.11 – 1873.11.11)
- Adam Carel Claessens (1874.06.16 – 1884.01.04) as Apostolic Vicar of Batavia (Java, Indonesia) (1874.06.16 – 1893.05.23), emeritate as Titular Archbishop of Siraces (1884.01.04 – 1895.07.10)
- Tomás Jenaro de Cámara y Castro, Augustinian Order (O.E.S.A.) (1883.08.09 – 1885.03.27)
- Piers Power (1886.01.29 – 1887.12.06)
- Louis-Hippolyte-Aristide Raguit (祁類思), Paris Foreign Missions Society (M.E.P.) (1888.03.23 – 1889.05.17)
- Titular Archbishop Enrico Giuseppe Reed da Silva (1898.03.24 – 1930.10.04), as emeritate; previously Titular Bishop of Philadelphia in Arabia (1884.03.17 – 1887.03.14), Bishop-Prelate of Territorial Prelature of Mozambique (Mozambique) (1884.03.27 – 1887.03.14), Bishop of São Tomé de Meliapor (India) (1887.03.14 – 1897.09.15)
- Agostino Laera (1931.07.24 – 1942.01.17)
- Felice Agostino Addeo, Augustinians (O.S.A.) (1942.07.01 – 1957.02.07)
- Humberto Lara Mejía, Vincentians (C.M.) (1957.07.19 – 1967.05.05)
- Traianopolis in Rhodope, a city and titular see in western Thrace
- "En Phrygie", Paris, 1895
- Asia Minor, 149; Cities and Bishopries of Phrygia, 595
- Richard Talbert, ed. (2000). Barrington Atlas of the Greek and Roman World. Princeton University Press. p. 62, and directory notes accompanying.
- Lund University. Digital Atlas of the Roman Empire.
- v, 2, 14, 15
- Synecedemus, 668, 150
- Le Quien, Michel (1740). Oriens Christianus, in quatuor Patriarchatus digestus: quo exhibentur ecclesiæ, patriarchæ, cæterique præsules totius Orientis. Tomus primus: tres magnas complectens diœceses Ponti, Asiæ & Thraciæ, Patriarchatui Constantinopolitano subjectas (in Latin). Paris: Ex Typographia Regia. col. 803. OCLC 955922585.
- C. I. G., 9265
- Annuario Pontificio 2013 (Libreria Editrice Vaticana, 2013, ISBN 978-88-209-9070-1), p. 995
|Wikisource has the text of the 1913 Catholic Encyclopedia article Trajanopolis (2).|