The Piani Palentini ([ˈpjaːni palenˈtiːni]) is a plateau in upper Marsica, a subregion of Abruzzo, in central Italy.

[1] This plateau is adjacent to the Fucino plain in the east, and to the upper Cicolano valley in the northwest part, falling within the territories of the municipalities of Avezzano, Capistrello, Magliano de' Marsi, Scurcola Marsicana, and Tagliacozzo.

[3] Numerous archaeological finds show that in the Roman age, after the foundation of the colony of Alba Fucens, the whole area underwent a centuriation and the various pieces of land that had been so delimited were granted to Latin settlers.

[4] A few years after the first draining of lake Fucino through the building of the Tunnels of Claudius after 52 AD, the Piani Palentini were provided with an aqueduct to serve country villas and facilitate farming activities.

[5] In 1268 the Battle of Tagliacozzo was fought in this location, which saw Conradin of Hohenstaufen's defeat, causing the fall of the House of Swabia from the Sicilian throne and Charles I of Anjou's supremacy in the Italian territory.