Federico Angelo Cesi (Italian: [fedeˈriːko ˈandʒelo ˈtʃɛːzi]; February 26, 1585 – August 1, 1630) was an Italian scientist, naturalist, and founder of the Accademia dei Lincei. On his father's death in 1630, he became briefly lord of Acquasparta.
Federico Cesi was born to an aristocratic family highly connected in Rome. The family derives its name from Cesi, a little town near Rome. Federico was the first of eleven legitimate male children and was born in Palazzo Cesi, in via della Maschera d'Oro, Rome, February 26, 1585. His father was Federico, marchese di Monticelli (1562–1630) and his mother was Olimpia Orsini of Todi. In 1614 Cesi was married to Artemisia Colonna, the daughter of Francesco, principe di Palestrina; she died two years latFederico Angelo Cesi (Italian: [fedeˈriːko ˈandʒelo ˈtʃɛːzi]; February 26, 1585 – August 1, 1630) was an Italian scientist, naturalist, and founder of the Accademia dei Lincei. On his father's death in 1630, he became briefly lord of Acquasparta.
Federico Cesi was born to an aristocratic family highly connected in Rome. The family derives its name from Cesi, a little town near Rome. Federico was the first of eleven legitimate male children and was born in Palazzo Cesi, in via della Maschera d'Oro, Rome, February 26, 1585. His father was Federico, marchese di Monticelli (1562–1630) and his mother was Olimpia Orsini of Todi. In 1614 Cesi was married to Artemisia Colonna, the daughter of Francesco, principe di Palestrina; she died two years later. In 1616 he was married to Salviati Isabella, the daughter of the Marquis of Lorenzo. In 1618 he moved to Acquasparta and lived there until his death at the age of forty-five.
In 1603, at the age of eighteen, Cesi invited three slightly older friends, the Dutch physician Johannes Van Heeck (in Italy Giovanni Ecchio), and two fellow Umbrians, mathematician Francesco Stelluti of Fabriano and polymath Anastasio de Filiis of Terni to join with him in the founding of the Accademia dei Lincei ("Academy of the Lynxes"), aimed at the understanding of all natural sciences through a method of research based upon observation, experiment, and the inductive method. Their goal was to penetrate the secrets of nature, observing it at both microscopic and macroscopic levels. The four men chose the name "Lincei" (lynx) from Giambattista della Porta's book "Magia Naturalis", which had an illustration of the fabled cat on the cover and the words "...with lynx like eyes, examining those things which manifest themselves, so that having observed them, he may zealously use them". Cesi chose the sharp eyed lynx and the eagle for the Academy's symbols. The academy's motto, chosen by Cesi, was: "take care of small things if you want to obtain the greatest results" (minima cura si maxima vis).
Since it was an uncertain time to conduct scientific research — in 1578 the Inquisition had closed Giambattista della Porta's Academia Secretorum Naturae in Naples under suspicion of sorcery — the Accademia dei Lincei had rough beginnings. Cesi's own father forbade Cesi's association with the other three men, suspecting them of undermining his authority and trying to separate his son from family interests. The four "Lynxes" soon returned to their native cities and continued to communicate only by letter, adopting astronomical pen names: Cesi, perpetual president, was Celívago Cesi traveled to Naples where he met della Porta, who he seemed to have been corresponding with for some time. There he described his academy to Della Porta, who encouraged Cesi to continue with his endeavors. The academy managed to survive due to Cesi resources as a rich nobleman and his diplomatic skills in navigating the politics of Counter-Reformation Rome. Cesi managed to expand the ranks of the academy, recruiting Giambattista della Porta himself in 1610 and Galileo Galilei in 1611. Cesi's Academy published Galileo's "Istoria e dimostrazione intorno alle macchie solari" (Letters on Sunspots) in 1613, "The Assayer" in 1623, and also had a hand in defending Galileo in his controversies with establishment leaders and ecclesiastical authorities.
Cesi's own intense activity in the Academy was cut short by his sudden death in 1630 and the original Accademia dei Lincei did not survive his death.
Had a hand in coining the name "telescope" for Galileo's new invention.
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