Citation - Virginia Gazette-Williamsburg (Pa): 1738.05.05

VGW(PA.738.029
28 Apr-5 May 1738:11 (92)
They write from Madrid, that the 29th of last month, N.S.
Their Catholic Majesties assisted at a kind of opera, which
was represented in the palace by the Princes and Princesses
of the Royal Family, and executed with all the grace
imaginable:  Farinelli sung several cantata's in that piece: 
They add, that the court is very brilliant, since the King
of Spain has given leave to wear rich cloaths.