Sucidava

Castra Sucidava
Ruins of Sucidava, modern Romania
Location within Romania
Known also as	Castra of Celeiu
Abandoned	6th century
Attested by	Tabula Peutingeriana
Previous fortification	Dacian
Province	Dacia
Administrative unit	Dacia Malvensis
Nearby water	Danubius
— Stone structure —
Coordinates	43°45′52″N 24°27′33″E / 43.7644°N 24.4591°E / 43.7644; 24.4591Coordinates: 43°45′52″N 24°27′33″E / 43.7644°N 24.4591°E / 43.7644; 24.4591
Altitude	c. 37 m
Place name	Cartier Celei
Town	Corabia
County	Olt
Country	Romania
RO-LMI	OT-I-s-A-08492
Recognition	National Historical Monument
Condition	Ruined
Excavation dates	1900
Archaeologists	Pamfil Polonic

Sucidava (Sykibid after Procopius, Σucidava after Pârvan, where Σ is pronounced "sh") is a Dacian and Daco-Roman historical site, situated in Corabia, Romania, on the north bank of the Danube. The first Christian Basilica established in Romania can be found there and the foot of a Roman bridge over the Danube built by Constantine the Great to link Sucidava with Oescus (today in Bulgaria, in Moesia). There is also a secret underground fountain which flows under the walls of the town to a water spring situated outside.

From an archaeological point of view, the coins found at Sucidava show an uninterrupted series from Aurelian (270-275) to Theodosius II (408-450). The archaeological evidence show that in AD 443 or 447 the city was sacked by the Huns, and was restored under Justin I 518-527 or Justinian I 527-565. Around 600, it seems that the Roman garrison abandoned the city.