De Mulieribus Claris or De Claris Mulieribus (Latin for "Concerning Famous Women") is a collection of biographies of historical and mythological women by the Florentine author Giovanni Boccaccio, composed in Latin prose in 1361–1362. It is notable as the first collection devoted exclusively to biographies of women in post-ancient Western literature. At the same time as he was writing On Famous Women, Boccaccio also compiled a collection of biographies of famous men, De Casibus Virorum Illustrium (On the Fates of Famous Men). Purpose Boccaccio claimed to have written the 106 biographies for the posterity of the women who were considered renowned, whether good or bad. He believed that recounting the deeds of certain women who may have been wicked would be offset by the exhortations to virtue by the deeds of good women. He writes in his presentation of this combination of all types of women that he hoped it would encourage virtue and curb vice. Overview The author declares in the preface that this collection of 106 short biographies (104 chapters) of women is the first example in Western literature devoted solely and exclusively to women. Some of the lost works of Suetonius' "illustrious people" and Boccaccio's De Casibus Virorum Illustrium are a mixture of women and men, where others like Petrarch's De Viris Illustribus and Jerome's De Viris Illustribus are biographies of exclusively men. Boccaccio himself even says this work was inspired and modeled on Petrarch's De Viris Illustribus. Development Boccaccio wrote this work in Certaldo probably between the summer of 1361 and the summer of 1362, although it could have been as late as December 1362. He dedicated his work to Andrea Acciaioli, Countess of Altavilla, in Naples at the end of 1362 even though he continued to revise it up until his death in 1375. She was not his first choice however. He first considered to dedicate his slim volume to Joanna I of Naples. He ultimately decided that his work as a little book was not worthy a person of such great fame. There are over 100 surviving manuscripts which shows that the De Mulieribus Claris was "among the most popular works in the last age of the manuscript book". Boccaccio worked on this as a labor of love with several versions, editions, and rearrangements in the last twenty years or so of his life: studies have identified at least nine stages in its composition.