Celso Cittadini

Celso Cittadini
Cittadini's treatise on the origins of the Tuscan dialect, published in 1604.
Born	(1553-04-01)April 1, 1553 Rome, Papal States
Died	29 March 1627(1627-03-29) (aged 73) Siena, Grand Duchy of Tuscany
Nationality	Italian
Occupation(s)	philologist, university teacher, linguist, archivist, antiquarian
Known for	Demonstration that Romance languages emerged from Vulgar Latin
Spouse	Eufrasia Petroni
Parent(s)	Francesco Cittadini and Felice Cittadini (née Maddaleni)
Academic background
Influences	Dante Alighieri[1] Petrarch[1] Pietro Bembo[1] Claudio Tolomei[1] Lodovico Castelvetro[1]
Academic work
Era	Late Renaissance
Discipline	Italian studies
Institutions	University of Siena
Influenced	Girolamo Gigli[1]

Celso Cittadini (1 April 1553 – 29 March 1627) was an Italian grammarian and philologist.

He was the author of important works in which he demonstrated the emergence of Romance languages from Vulgar Latin and the also defined phonetic laws that highlight the correlation between certain Latin vowels and their equivalents in Tuscan.