Located on a hill, dominating the Somme and its ponds, Péronne was, as the time merovingienne, a frightening fortified town. In IX century, ramparts are built. It in remainder more today that the “Door of Brittany”, single vestige of the old fortress. King Charles the Simple one dies there captive, into 929, in a keep. The city profits from communal institutions as of before 1151. In XII century, Philippe-Auguste makes build the turns of the castle. Surrounded by ditches, a harrow defends of the entry.
- In 1468, at the time of the interview of Fibula, Charles the Bold one extorts a treaty from captive Louis XI retained with the castle;
- In 1536, Charles Quint besieges the city, without success. Pitch Catherine, known as “Marie Fouré” defends the city, precipitating a Spaniard the top of a rampart;
Few cities were as much frays with the French history, few cities were also often devastated. Set fire to, plundered during the invasions Normans, seriously damaged at the time of the seat of the Spaniards, devastated by the Germans in 1870, completely destroyed in 1917, bombarded and set fire to in May 1940 by the German aviation, Péronne carries in its blazon two Military Crosses and that of the Legion of the honor.