had proved the existence of an upside-down portrait of a mustachioed man holding a quill beneath the Italian Renaissance master Titian's painting Ecce Homo, 1570-75. On its surface, Titian's ...

The newly discovered work shows an unidentified man with a thin moustache, quill in hand ... that Titian later painted over it. The painting “holds a secret, and the secret is that there ...