No Handel opera is as enigmatic as Silla. His fourth London opera, it was composed in 1713 to a libretto by Giacomo Rossi, also the librettist of the composer s first great London triumph Rinaldo (1711). And that is just about the extent of any certainty on the subject. It might have been premiered in 1713 in London in a private concert at the Queen s Theatre, but even this remains unconfirmed. This is one of Handel s few historical operas, being concerned with Plutarch s account of the latter part of the life of Lucius Cornelius Sulla, who after taking Rome became a tyrannical despot who murders his opponents, before suddenly retiring to his country estate to enjoy his leisure. The libretto being somewhat weak, it leaves Silla an unlikely candidate to regain a place in the repertoire, but it definitely contains lots of thoroughly rewarding music. Handel itself utilized a significant part of it in his next opera, Amadigi di Gaula. Fabio Biondi and Europa Galante join an overwhelming vocal cast headed by a fantastic Sonia Prina in the title role, with Martina Belli, Sunhae Im, Vivica Genaux, Roberta Invernizzi, Francesca Lombardi Mazzulli, and Luca Tittoto also excelling in their respective parts. Biondi s ensemble perform with their trademark elegance and precision in a recording made in the Konzerthaus in Vienna over three days in January 2017.