At the beginning of the eighties of the last century, the issue of “patronage†began to arouse scholarly interest and gained importance. Galileo became a test case: his importance, and the importance of patronage – and that of the Medici in particular – go beyond the historical junction of the scientific revolution and have corollaries in the more general attitude to science and knowledge. This case furnished a new line of research for the historical sociology of science. As far as Galileo is concerned, my claim is that the new trend belongs to post-modern historiography, rather than to post-Renaissance Medici patronage.