The plain between the Arda and the Taro, around Borgo San Donnino and the Pallavicino lands, where Parma and Piacenza fought in 1199.
The Piacentini had seized Borgo San Donnino and Bardone; on 19 June 1199 Parma's army under its podestà Orlando Rossi crossed the Taro and routed them on the river's left bank, and Parma took Borgo San Donnino back. No peace or truce between the two cities was found for the winter of 1199-1200, and the same ground had been fought over before (the manor of Soragna was destroyed in 1186 by Parmesans and Cremonese fighting the Piacentini and the men of the borgo). Drawn as a raided frontier on that basis; no winter raid is attested.
How things stand that morning
Hostile frontier with no known peace; Parma holds Borgo San Donnino.
Who raids here
Parma (with Cremona's backing) and Piacenza (with Milan's) against each other; the Pallavicino and the Lupi sit inside the zone.
Anchors on each side
Parma: Borgo San Donnino (since 1199), Noceto, San Secondo. Piacenza: Fiorenzuola, Castell'Arquato. Inside: Busseto, Soragna and the Pallavicino hill castles (Scipione, Salsomaggiore).
Last campaign
Summer 1199: the battle on the Taro on 19 June and Parma's reconquest of Borgo San Donnino.
Where the sources disagree
Evidence: The 1199 campaign is attested in two Wikipedia accounts; whether raiding continued into the winter, or a truce was made, is not pinned. If a truce is found, read this as a tense border rather than a raided one.
On the map: A rough zone around the Via Emilia between the two rivers; its edges are not pinned.
Sources and studies
Last revised 4 November 2026. Published 4 November 2026. Suggest a correction on the OMNIA Discord.