Seeing the pride and the covetousness of the learned was so great that they still kept, and were loath to leave the old course, esteeming that which hath but a mere show of learning more than the clear and manifested Light and Truth, and so that finally man might understand his own nobleness and worth, and why he is called Microcosmos, the wise and merciful God raised up Christian Rosencreutz.
The fabled Christian Rosencreutz, following an intention of a general reformation, went to Damascus where he found much favor with the Turks, and in the meantime he became acquainted with the Wise Men of Damcar in Arabia. In Damcar, Christian Rosencreutz translated the book M into good Latin, which he afterwards brought with him.
Brother C.R.C. (Christian Rosencreutz) next shipped himself over Sinus Arabicus into Egypt, where he remained not long, then sailed over the whole Mediterranean Sea for to come to Fez, where the Arabians had directed him. At Fez he did get acquaintance with those which are commonly called the Elementary inhabitants (Salamanders, Sylphs, Undines, and Gnomes), who revealed unto him many of their secrets.
After two years, Brother C.R.C. departed the city Fez, and sailed with many costly things into Spain, hoping well that the learned in Europe would highly rejoice with him. He therefore conferred with the learned in Spain, but it was to them a laughing matter, and being a new thing unto them, they feared that their great name would be lessened if they should now again begin to learn, and acknowledge their many years’ errors, to which they were accustomed, and wherewith they had gained them enough. Who so loveth unquietness, let him be reformed (they said). The same song was also sung to Brother C.R.C. by other nations, the which moved him the more because it happened to him contrary to his expectation.
Thus in part is the tale told of Christian Rosencreutz in a strange book, the Fama Fraternitatis.
In a book first published in 1964, Giordano Bruno and the Hermetic Tradition, Dame Frances Yates, an English historian who focused on the study of the Renaissance, speculated that the model for “Christian Rosencreutz” may have been Giordano Bruno. I suppose as a first link in the chain connecting Bruno and Rosencreutz one may as well begin with Philip Sidney. As a pseudo-Hermetic treatise of the twelfth century hints at, this Bruno/Rosencreutz connection is a sphere of thought whose center is everywhere and circumference nowhere (i.e., the subject is infinite and so cannot have a circumference).
Sir Philip Sidney (1554 – 1586) was an English poet, courtier, scholar, and soldier, and was one of the most prominent figures of the Elizabethan age.  Proto-Enlightenment Europe was becoming acquainted with Arab scholarship and alchemy. Cosimo de’Medici had earlier imported into Italy a library of rare books. Associated with the proto-Enlightenment were Giordano Bruno, Philip Sidney, John Dee, Francis Bacon, and Robert Fludd. 
According to author William Francis C. Wigston, the first Rosicrucian manifesto or pamphlet published, and which made the secret society known openly, was entitled, “A Universal Reformation of the whole Wide World by order of the God Apollo”, in 1614. A list of “The Great Assizes holden by Apollo and his assessours at Parnassus” contains, in part, these names:
- The Lord Verulam, Chancellor of Parnassus
- Sir Philip Sidney, High Constable of Parnassus
- William Shakespeare, almost at the bottom of the list! 
Wigston may have been slightly off about the first Rosicrucian manifesto. The Fama Fraternitatis may have circulated in manuscript form as early as 1610. It was first printed in August 1614 at Cassel in Hesse. It is a close call: The Great Assizes holden by Apollo and his assessours at Parnassus was also published in 1614. However leaving quibbles aside, it is basically shown how Philip Sidney connects with the Rosicrucians.
Giordano Bruno met with Philip Sidney in London. There, Bruno presented to Sidney his plan for a “magical reformation.” This plan involved Copernicanism, which to Bruno was more than just science but a symbol of “the new revelation” and meant a return to the magical religion of the Egyptians.  (Further background: What Happened To The Egyptians, Ersjdamoo’s Blog, May 12, 2015.)
Cosimo de’Medici had imported into Italy a library of rare books. Among these books were purported writings of Hermes Trismegistus, which Hermetic texts had a huge influence upon Giordano Bruno. Cosimo II de’Medici was the patron of Galileo Galilei. And in Galileo’s Dialogue Concerning the Two Chief World Systems, one of the main characters in the dialogue is Filippo Salviati. Filippo Salviati, suggests Frances Yates, is in other words Philip Sidney: Filippo Salviati = Philip Sidney.
——- Sources ——-
 “Philip Sidney”, Wikipedia, May 15, 2015.
 Rough Guide to Conspiracy Theories, The (3rd), by James McConnachie & Robin Tudge. Rough Guides, 2013.
 Francis Bacon, Poet, Prophet, Philosopher, Versus Phantom Captain Shakespeare, the Rosicrucian Mask, by W.F.C. Wigston. London: Kegan Paul, Trench, Trubner & Co., 1891.
 Giordano Bruno and the Hermetic Tradition, by Frances A. Yates. University of Chicago Press, 1991.