"Giovanni Antonio da Brescia was an Italian engraver of northern Italy, active in the approximate period 1490–1519, during the Italian Renaissance. In his early career he ...
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used the initials "Z.A." to sign some twenty engravings, and until recently Zoan Andrea was regarded as a distinct printmaker; it is now realized that they are the same person, and the "Z.A." stood for Giovanni Antonio, "Zovanni" being a north Italian spelling. Around 1507 he began to use formulae such as "IO.AN.BX.", and signed some prints more fully. The real Zoan Andrea was a very obscure painter, documented as working in Mantua in the 1470s, who produced no engravings." - (en.wikipedia.org 01.08.2021)
