Cazzolani is practically unique, Cazzulani is specifically Lombard, they could derive from nicknames connected to the Latin bass word caza (basin) through dialectal modifications and would therefore indicate the trade of sellers or manufacturers of casseroles carried out by the family, but it is also possible to derive from the Lombard dialect word cazzöla (trowel, tool of the mason) and would indicate that this was instead the job of the progenitor.
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