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Cosmi has a stock in Rimini and one in Lazio, Rome, Latina and Aprilia, Cosmo has a stock in Venice and in Venice and a main nucleus in Bari and Bari, De Cosmi, extremely rare, it would seem of the Roman, De Cosmo, a little more widespread, it would seem Pugliese, of Bari in particular and of Foggia, should derive from modifications of the Norman name Gossmann and perhaps, in some cases, especially in the north, from the contraction of the name Cosimo, or from patronymic forms with the De that stands for son of.
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