In 1616, after the first trial of the Inquisition against Galileo Galilei, the heterodox Dominican theologian, philosopher and scientist Tommaso Campanella, himself big in trouble, was the only Italian thinker who dared defend him.
In 1592, ex-inmate Torquato Tasso was working on Il Mondo Creato, and published Gerusalemme Conquistata in 1593. In those very years, in 1592, Campanella and Galileo met in Padua, where the former, then 24 years old, studied at the University under a false name. In 1593, Campanella was arrested and jailed as a heretic; he would be freed no sooner than after 33 years. Meanwhile, he was so bold that he tried to defend the Tuscan scientist in the light of the doctrines of such people as Origen and Giordano Bruno! To the extent that Galileo tried to 'hide' this dangerous friendship of his. If Galilei is honored, Campanella -- who, while disagreeing with his "system," tried to help him simply in the name of the freedom of research -- should be honored more.
Tommaso Campanella, Apologia di Galileo [Lat.: Apologia pro Galileo], ed. by Prof. Luigi Firpo, Turin: UTET, 1968, pages 196, including many pictures and a facsimile reproduction of the original printed version (1622), cm 17 x 24