Typo: the title role was recorded as "Tomyis". The opera is Die grossmuetige Tomyris and the character is Tomyris, widowed queen of the Massagetae -- spelt so in the cast list of the EMI Reflexe booklet scanned in the folder (booklet/Keiser03.jpg: "TOMYRIS ... GABRIELE FONTANA") and on the back inlay, and in the operadis discography, https://www.operadis-opera-discography.org.uk/CLSICEMO.HTM ("Tomyris - Gabriele Fontana").