> I'll skip over the (longer) account of his fighting in the English
> Civil War and quote just the last sentence: "During the years before
> his death, Rupert dabbled in scientific experiments and introduced
> the art of mezzotint printmaking into England." This makes it
> very likely that he is indeed the man involved; but I don't know
> any further details.
Quite right. Cf.:
<q>
This problem is named after Prince Rupert, nephew of Charles I of
England, and commander of the Royalist forces in the English Civil War.
He was elected to the newly formed Royal Society; he invented an alloy,
still called Prince's metal, and investigated the properties of rapidly
cooled glass drops. He ended his years as Governor of Windsor Castle,
where he had his own forge and laboratory.
</q>
Wells, David. The Penguin Dictionary of Curious and Interesting Geometry.
London: Penguin Books, 1991, p. 195.
Antreas