L'armee a Naples, Palerme, Marque d'Ancone

Rome, Venise par Barbe horrible crie.

While the Eagle and the Cock will be at Savonna,

The Sea, Levant and Hungary will united.

The army at Naples, Palermo, March of Ancona,

Rome, Venice through Barbe a terrible screams.

All listed cities are located in Italy. The Eagle and the Cock it is Austria and France, which at the 17 century fought for the possession of northern Italy. Rome and Ancona belonged to the Papal states, which Bonaparte seized and exiled Pope in Savonna.

2 line. The French called Syria, Turkey, some countries of North Africa as Levant, i.e. Ottoman Empire. Perhaps this refers to the unification of the Ottoman and Russian fleets during the war of 2nd coalition. True, Hungary does not fit into this context.

In 1799 the Napoleonic army captured Naples, and his king fled to Palermo in the ship of Nelson. Ushakov freed Naples from the French, but not for long – a year later Napoleon again captured Italy.

Barbe is the patroness of artillery, miners, etc. The Napoleonic army was especially strong with its artillery. The last line probably predicted military operations between the French army and the Russian-Austrian army under the command of Suvorov in 1799.

Possible decoding of the number 8.9. If 8 to concider as 8000, then 8000-9=7991. Moving 1 forward, we get the year 1799.