Czech baroque composer. Born October 16, 1679 in Louňovice pod Blaníkem, Bohemia (presently Czechia), died December 23, 1745 in Dresden (presently Germany). His music was notably adventurous with great harmonic invention and mastery of counterpoint. Most of Zelenka's compositions were sacred works, including three oratorios, 21 masses, a Te Deum and numerous other pieces. Also known as Johann Dismas Zelenka.