Ciardi seems to have more stocks, in the Florentine, in Lazio, in Campania and in Puglia, Ciardiello, typical of Naples, of Pietrastornina and San Martino Valle Caudina nell'avellinese and of Piedimonte Matese and Parete in the Caserta area, Ciardini is Florentine, Ciardino, practically unique, is Campania, Ciardulli has a stock in Rome and one in Aversa in Caserta, Naples and Ariano Irpino nell'avellinese, Ciardullo has a stock in Rome and Mentana in the Roman, but the most consistent nucleus is in Cosenza in Cosenza, Luzzi, Dipignano, Montalto Uffugo, San Marco Argentano and Carolei, should all derive, directly or through hypocoristic forms, even dialectal, from the medieval name Ciardo, apheresis of the name Ricciardo, an archaic variant of the name Riccardo, or from his own hypocoristic dialect, Ciardo it is instead typical of Salento and could also derive from a place name, for example in Castrignano del Capo (LE) a fraction with this name. Trace of this name we find it for example in Siena in 1300 with the notary Ser Pietro di Ciardo, an example of this surname is found in Florence in 1400 where we find a Giuliano Ciardi da Tavola, from the countryside of Florence, in Solofra (AV) in 1500 there is a certain Ciardo de Garzillo who in one act declares: "... to place a fruit-bearing shrub land located in the locality of the chestnut bordering on the assets of the heirs of the quondam Brando Pirolo, with the street and other goods with a wealth of grit 17. ".
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