(20-07-2017, 01:09 PM)Anton wrote: You are not allowed to view links. Register or Login to view.Quote:Maybe he writes his name in it to make it more "his" and almost feels like it's his since he probably spent some time (maybe a lot of time) studying the plant drawings.
Not only the name is there, but also the number. He would not put down this exlibris were the book not actually his.
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When Rudolph died, his brother expelled the scientists from the court. They were probably pretty grumpy about losing their patronage and being treated this way and may have taken with them whatever they had on hand.
If the manuscript had been in Jacob's possession for a while and no one explicitly asked him to return it, he might add his Ex Libris to make it seem more his (less like it was stolen) if some time had passed (a few months, a few years?). It would all depend on how confident he was that no one in the new court knew about the manuscript and whether they were likely to ask for its return.
Rudolph II's curiosities were quite numerous and not seen by many people (the emperor was reclusive to the point of paranoia and didn't like having a lot of people around). It's doubtful that all of these items were cataloged or that any one person knew where all of them were at any given time, especially after the upheaval at his death when Matthias replaced the personnel and ejected the scientists.
All very speculative but it wouldn't surprise me if the members of the old court who were thrown out took a few things with them when they left.