The scudo (pl. scudi) was the name for a number of coins used in Italy until the 19th century. The name, like that of the French écu and the Spanish and Portuguese escudo, was derived from the Latinscutum ("shield"). From the 16th century1, the name was used in Italy for large silver coins. Sizes varied depending on the issuing country.
First scudo d'argento (silver shield) was issued in 1551 by Charles V (1519-1556) in Milan.1
Under Maria Theresa and Joseph II the scudo d'argento had a weight of 23.10 g and a finess of 896/1000.2
Before the Napoleonic Wars, the lira was subdivided into 20 soldo, each of 12 denari. After, the lira was made up of 100 centesimi.
When Austria-Hungarydecimalized in 1857, the scudo was replaced by the florin at a rate of 2 florin = 1 scudo. Coins of ½ and 1 soldo were issued, equal to ½ and 1 kreuzer, for use in Lombardy and Venetia.