Metastasio, Pietro (1698–1782) Works   hu it

Biography

Pietro Antonio Domenico Trapassi, better known by his pseudonym of Metastasio, (January 3, 1698 – April 12, 1782) was an Italian poet and librettist, considered the most important writer of opera seria libretti.

http://en.wikipedia.org/wiki/Metastasio

(Editor of this page: P. T.)