Caterina di Jacopo di Benincasa, TOSD, known as Catherine of Siena, was an Italian Catholic mystic and diplomat who engaged in papal and Italian politics through extensive letter-writing and advocacy. Canonised in 1461, she is revered as a saint and as a Doctor of the Church due to her extensive theological authorship. She is also considered to have influenced Italian literature. April 2, 1347 – 1380; died at about 32. Alive at the same time as Geoffrey Chaucer, Ibn Battuta, Bayezid I, Hafez, and Petrarch. Wiki link