1685 Johann Sebastian Bach - Composer and organist, born in Eisenach, Germany to a family which had produced 53 organists, cantors and town musicians over 300 years. Despite his vast output, less than a dozen of his hundreds of compositions were published during his lifetime. His genius was not recognised until half a century after his death. (Gottes Zeit, Toccata and Fugue in D Minor, Little Organ Book, Mass in B Minor, Magnificat)
His music is some of my favorites. I guarantee everyone here would recognize Toccata and Fugue in D Minor.
1962 Rosie O'Donnell