The autograph reference “Per la Sig.ra Geltruda” on the manuscript of Vivaldi’s motet “Clarae stellae, scintillate” has long aroused the curiosity of researchers. By years of research around the Vivaldi expert Michael Talbot is now revealed who this “Signora Geltruda” is: Geltruda della Violetta was a girl from the Venetian orphanage La Piet , where Vivaldi worked for over a decade. Geltruda probably had an exceptionally beautiful voice that quickly attracted the interest of important personalities.