The Latin name "Jaziacum" in Roman times. Long been inhabited by men (it is found an important Merovingian necropolis). Jaulzy has developed on the left bank of the Aisne. The village is divided into two parts; 'Jaulzy down', now the most densely populated area, along the road from Soissons to Compiegne, and 'Jaulzy up' on the side of the valley, where once stood the castle there are still walls that surrounded the old farmyard with two turrets to the west of the 16th century and a curious little 'temple' circular, which the dome is supported by six Ionic columns.
After the victory of Clovis at Soissons in 486 AD, the Franks settled in Jaulzy. There was once a toll on the way to Compiegne to Soissons, Philip the Fair gave 200 livres to the monks of Mont-St-Pierre, to touch on feudal law.
There was also a staging post for horses: from Compiegne to Soissons, there was a toll for the river Aisne, it was perceived to Jaulzy the benefit of the Dukes of Valois. In June 1310, the king gave Gilles de Laon Oysile and his wife, the toll Jaulzy estimated yearly twenty pounds and forty Parisian aissins oats, to take on several huts of Breuil, as compensation for certain places they had at Moncel and Pont-Ste-Maxence, they had exchanged with the king.
In 1551, the town rebuilt the church of St. Martin after installing the bell cast in 1541. The church is located on the hill, isolated in the middle of the cemetery. It offers a view of the site extending to Magifique Forest Laigue. The church and cemetery have been fortified to serve as a refuge for the inhabitants of the village.
A small gatehouse on brackets above the portal is also still visible in the western facade. The bell tower at the saddleback roof is located on a side chapel in the northwest of the choir. In 1863, was added to the bedside a curious chapel dome roof is emphasized by the edges and is used aujourdh'hui sacristy. Inside, the nave is capped but the vaulted choir and transept, the date 1551 is inscribed on one of the bases of the polygonal choir.
Lords of Blerancourt, the De Lanvin also erected the castle of Ortois, which was destroyed during the Revolution.
The town received the Croix de Guerre 1914-1918.
