Steffani's fourth Hanover opera, an opera in three acts, Hanover 1691, libretto by Ortensio Mauro after Ariosto's Orlando furioso; revived in Hanover 1692 and given at the Oper am Gaensemarkt, Hamburg, in 1695 as "Der Grossmuethige Roland". Sources: https://en.wikipedia.org/wiki/Orlando_generoso (citing EB1911 s.v. Steffani and Colin Timms, Polymath of the Baroque, 2003, p. 229) and the back cover of MDG 309 1566-2 ("Agostino Steffani (1654-1728) / Orlando generoso / Opera in three acts"), scanned in the folder being filed. Created because findopera holds only one Steffani opera (2271, Niobe) and no row under any title could hold this recording.