Girolamo Alessandro Frescobaldi (also Gerolamo, Girolimo, and Geronimo Alissandro) was a musician from Ferrara, one of the most important composers of keyboard music in the late Renaissance and early Baroque periods. A child prodigy, Frescobaldi studied under Luzzasco Luzzaschi in Ferrara, but was influenced by a large number of composers, including Ascanio Mayone, Giovanni Maria Trabaci, and Claudio Merulo. Girolamo Frescobaldi was appointed “organist” of St. Peter's Basilica, a focal point of power for the Capella Giulia (a musical organisation) from July 21, 1608 until 1628 and again from 1634 until his death.