Frohlocken des römischen Volks (Ballet). 1746?

U.S. RISM Libretto Project.
Two parts; libretto in Italian and German on facing pages; added title page in Italian; "Argomento"--p. 2; "Inhalt"--p. 5.; ballet cast lists given in Italian--p. [1]-[2] at end.
Music by C. Nichelman--New Grove.
"Mit allergnädigster Freyheit"--title page.
Singers' names not given.
"Ballet Der Beständigkeit und des Glücks"--p. 23; Dopo la prima parte, ballo: [Ballerini]: LA COSTANZA. Mlle Barberina -- LA FORTUNA. Mlle Cochoy -- SEGUACE DELLA COSTANZA. Mr. Lany -- SEGUACE DELLA FORTUNA. Mr. Tessier -- SEGUACI DELLE DUE DIVINTÀ. [Mr.] Giraud; [Mlle] Dasnoncour ... [et al.]"--p. [1] at end.
"Ballet: Frohlocken des römischen Volcks"--p. 45; "Doppo la seconda parte Giubilo del popolo romano: [Ballerini]: Mlle. Barberina, Mr. Lany, Mlle. Cochoy, Mr. Tessier, Mlle. Lany, Mr. Noverre; ROMANI. [Mr.] Le clerc ... [et al.]; [Mlle] Dasnoncour ... [et al.]"--p. [2] at end.
Performance: Berlin, Hof-Schaubühne, 1746? (venue)