Decoding the Voynich Symbols

[ReneZ]

Hi Kepler succeeded Brahe as the imperial mathematician and shared the emperor’s interest in esoteric knowledge. Although primarily focused on astronomy, Kepler’s presence in the same intellectual circles suggests potential interaction with Horcicky, especially regarding alchemical or botanical discussions.

Both Kepler and Horcicky were associated with Rudolf and his court, and it the question whether they knew each other is interesting enough.
Kepler was strongly protestant: he had to leave Graz because he refused to adopt Catholicism. 
Horcicky was strongly catholic: he was forced to leave Melnik by the Utraquist (protestant) population.
In those days, religion was of the greatest importance.

Kepler was famous and had important patrons already shortly after 1600.
Horcicky was not at all famous. He had a bit of a name after his nobilitation in 1608.
Kepler was primarily a matematician and astronomy+astrology were part of mathematics.
I am not aware of any interest in medicine (which included herbal knowledge).

There are also no records of contact between them.

Horcicky undoubtedly must have known who was Kepler, but the other way round is far from clear. Chances that they would ever have even talked to each other seem extremely small.

Note that this has nothing to do with the Voynich MS.
It is possible that Kepler saw it at some point. Horcicky certainly owned it, probably after Rudolf's death.