- This article is about the 1248 Battle of Parma. For the Battle of 1734 see the Battle of San Pietro.
Battle of Parma Part of the Wars of the Guelphs and Ghibellines Date 1247 - 1248
February 18, 1248 
Location Parma, Emilia, present-day Italy Result Decisive Lombard victory  Belligerents Holy Roman Empire Lombard League Commanders and leaders Frederick II Strength 5,600  Casualties and losses 1,500 Killed
100 Knights and 1,500 Foot soldiers Captured 
The Battle of Parma was fought on February 18, 1248 between the forces of Holy Roman Emperor Frederick II and the Guelphs. The Guelphs attacked the Imperial camp when Frederick II was away. The Imperial forces were defeated  and much of Frederick's treasure was lost.
The free commune of Parma had been a longtime supporter of the Ghibelline (pro-imperial) party. However, it was also considered an important stronghold to take by the Guelphs (pro-papal), due to its flourishing economy and its position across the Via Francigena.
On 25 June 1243 Innocent IV, who had several friends in the city and had held several positions in the local diocese, was elected as pope. He thus started a plan to bring Parma to the Guelph side, by replacing the current bishop with Alberto Sanvitale, who was more loyal to him, and order the local Franciscans to convince the population to change side. The already strained relationship between emperor Frederick II and the pope worsened: the situation was further aggravated by the coup by which the city fell in the hands of a Guelph group, including Ugo Sanvitale (the brother of the new bishop of Parma) and Bernardo di Rolando Rossi (the pope's brother-in-law and a former collaborator of Frederick).
The emperor knew of the rebellion when he was at Pavia. He immediately mustered an army, marched against Parma from Emilia, ousted Rolando Rossi and installed Tebaldo Franceschi at the new city's captain. Innocent IV, however, continued his hate campaign against Frederick both in Lombardy and the Kingdom of Sicily with letters to the local nobility and clergymen. Several noblemen, including the Sanseverino and three Fasanella, set a plot against the emperor in 1244: however, they were betrayed by a participant, and many were arrested and executed. Some conspirators sought the protection of the pope, who, in the meantime, had moved to Lyon, which was more distant from the imperial armies. Here he summoned the Council of Lyon in 1245, where it was decided to confirm the excommunication of the emperor, proclaimed in 1227 by Gregory IX.
Now that the papal participation in the plot against him had become clear, Frederick wrote to the noblemen to inform them of the pope's vile behavior, and marched with an army to Lyon in 1247. Once he had arrived in Turin, however, he received news that Parma had rebelled again. According to Salimbene di Adam, a group of Guelph Parmigian refugees who had taken shelter in Piacenza led by Ugo di Sanvitale (the brother of the new bishop of Parma) and Bernardo di Rolando Rossi (the pope's brother-in-law and a former collaborator of Frederick). They defeated the imperial garrison under the imperial podestà Enrico Testa near Borghetto di Taro and occupied the city with no resistance, since the garrison of Enzio of Sardinia, Frederick's son, was besieging Quinzano. Frederick immediately diverted his troops to Emilia, and at the same time he called for reinforces from friendly lords and communes. The imperial army was also joined by Enzio, who raised the siege of Quinzano, and by a Cremonese contingent led by Ezzelino III da Romano, as well as by soldiers from Padua, Verona and Vicenza.
The pope did his best to send help to Parma from cities faithful to him, such as Milan, Piacenza, Mantua and Ferrara. Gregorio di Montelongo was able to reach the city, organizing its defense with Bernardo Rossi and Gilberto da Gente.
Perhaps due to a shortage of siege weapons, Frederick decided to take the city by starvation. The Guelphs were however determined to resist thanks to the papal help, and the siege dragged for eight months. Frederick ordered the construction of an entrenched camp near Grola, calling it Victoria (Latin for "victory"), which should include a houses, palaces and a church, declaring that it would be come the seat of his kingdom after the fall of Parma. However, several noblemen abandoned him. Further, on 12 February 1248 Gregorio di Montelongo launched a sortie: Frederick was hunting in the Taro valley, and Vittoria was destroyed. He took refuge at Borgo San Donnino, and then moved to the faithful Cremona.
The defeat of Parma was a decisive defeat for Frederick, who had to abandon forever any dream to conquer northern Italy. The Second Lombard League recovered some territories, the whole Emilia and Romagna embraced the Guelph cause, while the Marquisate of Montferrat and the Republic of Genoa remained hostile to him. Ezzelino III, despite remaining in the Ghibelline side, ousted the imperial governor from Monselice.
- ↑ Meyers Konversations-Lexikon, S. 739, Band 12, 1885,
- ↑ The Emperor Frederick II and the Sicilian Church ; H. J. Pybus / Cambridge Historical Journal, Vol. 3, No. 2 (1930), pp. 134-163
- ↑ The Papacy, An Encyclopedia Vol. II ; by Philippe Levillain - John W. O'Malley
- ↑ Saracen Archers in Southern Italy; by Giovanni Amatuccio / De Re Militari 2001
- ↑ 5.0 5.1 The Mirror of Language: A Study in the Medieval Theory of Knowledge; by Marcia L. Colish / Published by U of Nebraska Press, 1983
- ↑ The New Cambridge Medieval History V ; by Rosamond McKitterick, Christopher Allmand, David Abulafia, Paul Fouracre, Timothy Reuter, David Luscombe, Michael Jones, Jonathan Riley-Smith / Cambridge University Press, 1995
- ↑ 7.0 7.1 7.2 Carlo, Fornari. "La battaglia di Parma". Stupor Mundi. http://www.stupormundi.it/parma.html. Retrieved 24 July 2011.
- ↑ 8.0 8.1 8.2 8.3 Roversi Monaco, Francesca. "Parma". Federiciana. Enciclopedia Italiana. http://www.treccani.it/enciclopedia/parma_(Federiciana)/. Retrieved 24 July 2011.
- ↑ 9.0 9.1 "L'assedio di Parma". November 2003.
- Horst, Eberhard (2001). Federico II di Svevia. Milan: Rizzoli.
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