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Is there any known portrait of Rafael Bombelli? I don't think so, but if you visit his MacTutor biography, you will see there this picture:

enter image description here

It is clear to me that this cannot possibly be a picture of a XVIth century Italian. So:

  1. Does anyone here know who is this person?
  2. Is there any known portrait of Bombelli?
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  • $\begingroup$ Could you provide a reason for your "it is clear" statement? $\endgroup$ – Gerald Edgar Oct 7 '18 at 17:18
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    $\begingroup$ The clothing and the hair are not consistent with what I know about upper-class Italians from the sixteenth century. $\endgroup$ – José Carlos Santos Oct 7 '18 at 17:30
  • $\begingroup$ Funny, google returns many "portraits of Bombelli", none of them with a source. One place slaps Bombelli's name on Vieta's portrait. It is not looking good. $\endgroup$ – Conifold Oct 7 '18 at 23:59
  • $\begingroup$ The charicature you have included certainly reminds me of Cauchy. The clothing (collars and lapels) and the "comb-over" hair look just like the popular image of Cauchy we see on, for example, wikipedia. Not sure if Cauchy ever sported facial hair. $\endgroup$ – Nick R Oct 8 '18 at 5:06
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    $\begingroup$ I've browsed the 20th Century Italian editions/studies of Bombelli's Algebra : no portrait at all. Thus, if the manuscript sources has no pictures, it is hard to imagine that we can find it after so many centuries. $\endgroup$ – Mauro ALLEGRANZA Oct 8 '18 at 12:46

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