Spanish mathematician and theologian
Pedro Chacón (1526 in Toledo – 1581 in Rome) was a Spanish mathematician and theologian.
Life.
He worked as professor of Greek at the University of Salamanca, whose history, consulting ancient documents in the library, he published in 1569. In Salamanca he was part of the School of Salamanca, a notable group of professors which also included Francisco de Salinas and Fray Luis de León.
By 1572 he had moved to Rome, where he been summoned by Pope Gregory XIII to do mathematical work towards reform of the Julian Calendar. As part of this work, in 1577 he wrote the "Compendium Novae Rationis Restituendi Kalendarium", a description of the calendar reform proposal of Aloysius Lilius, upon which the Gregorian calendar would be based. Whilst in Rome he also studied classical sources.
References.
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