Anna Bon (b. 1739/40) was born in Russia and was an Italian composer and singer. Her parents were both involved in music, and travelled internationally; her father, Girolamo Bon, as a librettist and scenographer, her mother, Rosa Ruvinetti Bon, as a singer. She entered Ospedale della Pietà as a student at the age of four. She had rejoined her parents by the time they were at Bayreuth in the service of Margrave Friedrich of Brandenburg Kulmbach. In 1762 the family moved to the Esterházy court at Eisenach, where Anna remained until at least 1765. By 1767 she lived in Hildburghausen and was married to the singer Mongeri. A libretto is the complete body of words used in an extended musical work such as an opera, operetta, masque, sacred or secular oratorio and cantata, musical, and ballet. ... A scenographer develops the appearance of a stage design, a TV or movie set, a gaming environment, a trade fair exhibition design or a museum experience exhibition design. ... Bayreuth [pronounced by-royt] is a town in northern Bavaria, Germany, on the Red Main river in a valley between the Frankish Alb and the Fichtelgebirge. ... The House of Esterházy (- German, in Hungarian: Eszterházy, in Slovak: Esterházi) was a noble family in the Kingdom of Hungary since the Middle Ages, which was among the great territorial magnates of the Kingdom of Hungary, during the time it was part of the Austrian Habsburg Empire. ... Eisenach is a city in Thuringia, Germany. ... Hildburghausen is a town in Thuringia, capital of the district Hildburghausen. ...

Reference

Jane Schatkin Hettrick. "Anna Bon", Grove Music Online, ed. L. Macy (accessed September 19, 2006), grovemusic.com (subscription access). The Grove Dictionary of Music and Musicians is an encyclopedic dictionary of music and musicians, considered by most scholars to be the best general reference source on the subject in the English language. ... September 19 is the 262nd day of the year (263rd in leap years). ... 2006 (MMVI) is a common year starting on Sunday of the Gregorian calendar. ...