Acincum
Ἀκούιγκον
Acincum, AQUINCUM (Ἀκούιγκον, Ptol. 2.16.4; Tab. Peut.; Orelli, Inscript. 506, 959, 963, 3924; Amm. Marc. 30.5; Itin. Anton.), a Roman colony and a strong fortress in Pannonia, where the legion Adjutrix Secuda was in garrison (Dion. Cass. 55.24), and where also there was a large manufactory of bucklers. Acincum, being the centre of the operations on the Roman frontier against the neighbouring Iazyges (Slovács), was occasionally the head-quarters of the emperors. It answers to the present Alt-Buda, where Roman basements and broken pillars of aqueducts are still visible. On the opposite bank of the Danube, and within the territory of the lazyges, stood a Roman fort or outpost called, from its relative position, Contra-Acincum (Not. Imp.), which was connected with Acincum by a bridge. Contra-Acincum is named Πέσσιον by Ptolemy (3.7.2).
From William Smith (ed.), Dictionary of Greek and Roman Geography. Text provided under a CC BY-SA license by Perseus Digital Library, http://www.perseus.tufts.edu, with funding from the National Endowment for the Humanities and Tufts University. Data accessed from https://github.com/PerseusDL/canonical-pdlrefwk/ on 17 October 2026.