Question: Which Italian Renaissance composer of sacred music had an important role in the Counter-Reformation?
Context: Palestrina - Prince of Music is an Italian/German 2009 music film directed by Georg Brintrup.  The subject is the life and music of Giovanni Pierluigi da Palestrina (ca.1525-1594), famous Italian Renaissance composer of sacred music.  He is the best-known 16th-century composer of the Roman School.  Filmed in March 2009 on locations mainly in and around L'Aquila and Rome, most of the ancient buildings and historical interiors in the city of L'Aquila were distroyed by the 2009 L'Aquila earthquake, only a few days after the end of shooting.  Palestrina’s music in the film is directed by Flavio Colusso and the Roman Ensemble Seicentonovecento.  The film was also titled The Liberation of Music or Die Befreiung der Musik when released in Germany. Luca Antonio Predieri (13 September 1688 – 3 January 1767) was an Italian composer and violinist.  A member of a prominent family of musicians, Predieri was born in Bologna and was active there from 1704.  In 1737 he moved to Vienna, eventually becoming Kapellmeister to the imperial Habsburg court in 1741, a post he held for ten years.  In 1765 he returned to his native city where he died two years later at the age of 78.  A prolific opera composer, he was also known for his sacred music and oratorios. Although his operas were largely forgotten by the end of his own lifetime and most of their scores lost, individual arias as well some of his sacred music are still performed and recorded. Moksha Festival is a two-day festival celebrating wellness, spiritual expansion and conscious living through: Yoga, Ayurveda, Sacred Music and healthy food.  It is an opportunity to celebrate old friendships and build new ones with like minded people and businesses.  It attracts all kinds of people who are interested in a conscious living.  Moksha Festival is celebrated in various cities in the United States, mostly in the 2nd half of the year.  The festival usually offers Seminars & Workshops on Yoga & Ayurveda, Kirtan & Sacred Music, Vendor exhibition, Spiritual Art Exhibition & a Healing Camp.  Festival entry is free.  Visitors can access the Vendor Exhibition, Spiritual Art Exhibition and Healing Camp free of charge.  In some festivals, visitors may be required to buy tickets to participate in some Workshops and Sacred Music Events.  More information about Moksha Festival can be found on their website www.mokshafestival.com Rocco Rodio (c. 1535 – after 1615) was an Italian Renaissance composer and theorist, best known for his sacred works and keyboard ricercares. Jiří Rychnovský (1545, Rychnov nad Kněžnou – 1616, Chrudim) was a Czech composer of the Renaissance and early Baroque era.  He was the mayor of Chrudim.  His musical work consists of Czech and Latin sacred music with advanced vocal polyphony, revealing a knowledge of European designs, but also the efforts of self-expression.  His compositions have been recorded in manuscripts of the Literary Society in St. Michael in New Town in Prague.  It is one of the few surviving complete collections of Czech Renaissance sacred music.  He usually wrote under his Latin name Georgius Rychnovius. Monsignor Lorenzo Perosi (21 December 1872 – 12 October 1956) was an Italian composer of sacred music and the only member of the Giovane Scuola who did not write opera.  In the late 1890s, while he was still only in his 20s, Perosi was an internationally celebrated composer of sacred music, especially large-scale oratorios. Nobel Prize winner Romain Rolland wrote, "It's not easy to give you an exact idea of how popular Lorenzo Perosi is in his native country."  Perosi's fame was not restricted to Europe.  A 19 March 1899 "New York Times" article entitled "The Genius of Don Perosi" began, "The great and ever-increasing success which has greeted the four new oratorios of Don Lorenzo Perosi has placed this young priest-composer on a pedestal of fame which can only be compared with that which has been accorded of late years to the idolized Pietro Mascagni by his fellow-countrymen."  Gianandrea Gavazzeni made the same comparison: "The sudden clamors of applause, at the end of the [19th] century, were just like those a decade earlier for Mascagni."  Perosi worked for five Popes, including Pope St. Pius X who greatly fostered his rise. Giovan Leonardo Primavera (c. 1540–1585) was an Italian Renaissance composer and poet.  Born in Barletta, he spent most of his working life in Naples, with some time in other Italian cities such as Venice, Milan, and Loreto. Giovanni Pierluigi da Palestrina ( 1525 – 2 February 1594) was an Italian Renaissance composer of sacred music and the best-known 16th-century representative of the Roman School of musical composition.  He had a lasting influence on the development of church music, and his work has often been seen as the culmination of Renaissance polyphony. William Byrd ( ; birth date variously given as c.1539/40 or 1543 – 4 July 1623, was an English composer of the Renaissance.  He wrote in many of the forms current in England at the time, including various types of sacred and secular polyphony, keyboard (the so-called Virginalist school), and consort music.  He produced sacred music for use in Anglican services, although he himself became a Roman Catholic in later life and wrote Catholic sacred music as well. Tomás Luis de Victoria (sometimes Italianised as "da Vittoria"; c. 1548 – 27 August 1611) was the most famous composer in 16th-century Spain, and was one of the most important composers of the Counter-Reformation, along with Giovanni Pierluigi da Palestrina and Orlando di Lasso.  Victoria was not only a composer, but also an accomplished organist and singer as well as a Catholic priest.  However, he preferred the life of a composer to that of a performer.
Answer: Giovanni Pierluigi da Palestrina