Trebbia
river in Italy
The Trebbia (stressed Trèbbia; Latin: Trebia) is a river predominantly of Liguria and Emilia Romagna in northern Italy. It is one of the four main right-bank tributaries of the river Po, the other three being the Tanaro, the Secchia and the Panaro.
Along its eastern banks in 218 BC was fought one of the great battles of the Second Punic War. In the Battle of Trebbia, Hannibal defeated a Roman consular army.
The 1,150-square-kilometre (440 mi2) drainage basin is divided among Emilia Romagna, 770 square kilometres (300 mi2), Liguria, 349 square kilometres (135 mi2), and Lombardy, 31 square kilometres (12 mi2). Its principal tributaries are the torrents Aveto and Perino (from the right) and the torrent Boreca (from the left).
Geography
The source of the river, the Trebbia river spring, is in the Ligurian Apennines on the south slopes of Monte Prelà, to the south of Monte Antola in the comune of Torriglia, Province of Genoa. Monte Prelà, 1,407 m (4,616 ft) high, is part of the Antola massif.
The spring is not on the peak but is at roughly 800 m (2,600 ft). Across a small ridge to the west, on which sits Torriglia, and slightly further downslope is the source of the Scrivia river.
Begin with the source’s own compact description: “Trebbia” is river in Italy. The dossier treats that line as a proposition to test through Trebbia, river and Italy, not as a finished interpretation.
Why this record matters
The phrase “river in Italy” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.
Maps, plans, fabric surveys and administrative records can establish how the site’s name, extent and function changed over time. The source revision retrieved here is dated Sep 12, 2026. The linked authority identifier is Q732587. VIAF identifies the subject as 236574728. The Library of Congress control number is sh2002006049. Authority coordinates are 45.072, 9.685. 3 of 3 selected statements include explicit references; 1 carry qualifiers and 0 use preferred rank.
Modern boundaries and familiar names can conceal earlier jurisdictions or structures that do not align with the present site. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Treat names, boundaries and functions as historically changeable. Maps, plans, inventories and administrative records can clarify what the place meant at different dates.
- Historic place names
- Jurisdictional context
- Routes into maps and plans
Contemporary maps, plans, listed-building records, estate papers and the responsible local or national archive.
Three-step research path
- Establish the record: confirm the title “Trebbia”, its source revision and the description used here.
- Expand the search: follow Trebbia primary sources, Trebbia archive and Trebbia research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Trebbia”?
- What physical evidence or contemporary plan supports the description?
- Which authority defined the place, boundary or structure at the relevant date?
Search terms from this dossier
This entry incorporates text from “Trebbia” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.