Kinner is a name that is probably only known by people who have a deep interest in the history of the Voynich MS, but his letters to Kircher provide an independent reference to the fact that Johannes Marcus Marci sent the MS to Kircher with the request to have it translated.
Just by chance, I ran into this reference to his letters: You are not allowed to view links.
Register or
Login to view.
and was pleased to find old Voynich researcher Philip Neal involved, together with Thomas Conlon, both of whom together also translated the Kircher letter in response to Moretus and Barschius, which is discussed in detail here:
You are not allowed to view links.
Register or
Login to view.
I have not (yet) followed any of the links in the page, but greatly appreciate the various collaborative activities of historical research it refers to.
Kinner was also mentioned in the discussion of Fabrizio Salani's document, but as this page indicates, he only became involved with the Bohemian court after 1649, well after Barschius' first letter to Kircher (1637).