Origin of Castelletto

This interesting name is of early medieval English topographical origin, and is derived from the Anglo-Norman French "castel", castle, fortified building or set of buildings, especially the residence of a feudal lord. The name could also have denoted a servant who lived and worked at such a place. Topographical surnames were among the earliest created, since both natural and man-made features in the landscape provided easily recognisable distinguishing names. The name development since 1154 (see below) includes the following: Henry de Castell (1260, Cambridgeshire), John del Castel (1307, Yorkshire), and William ate Castele (1317, Kent).

The modern surname can be found as Castle, Castles, Castell and Castells, Chasteau, Kastel, Chatelet, Castelletti etc. Richard Castle (deceased 1751) was an architect who was born in Germany of German parents and moved to Ireland before 1720, where he designed many buildings in Dublin and in the provinces. He was also known as Cassel or Cassels. A Coat of Arms granted to the family is argent, three towers gules, the crest being a castle in flames. The first recorded spelling of the family name is shown to be that of Richard Castel, which was dated 1148-1154, in the "Records of Bec Abbey", Sussex, during the reign of King Stephen, known as "The Count of Blois", 1135 - 1154.

It should derive from a nickname linked to the Latin castellum, "fortress, fortification" perhaps to indicate the fact of living in a castle or being employed in a castle, but it can also be derived from a nickname linked to toponyms with the root Castel- .

The surname Castelletti is typical of Lombardy.

Castelletta is typical of the province of Novara.

Castelletto is present in Veneto, in the province of Pordenone and in Piedmont.