In the lower right of one of this artist's paintings, a self-portrait looks at the viewer while knee
In the lower right of one of this artist's paintings, a self-portrait looks at the viewer while kneeling in a group of Swiss Guards. In that painting, a black-robed Felice della Rovere holds her red cap in her hand while her father prays on a raised altar platform. The central scene in another painting by this artist is visible through a crossed iron gate, behind which a glowing angel visits a dejected saint in his prison cell. The bread of the Eucharist drips blood onto a tablecloth, forming cross-like marks, in this man's The Mass at (*) Bolsena, and he worked on his Liberation of St. Peter with his assistant, Giulio Romano. In another work, he borrowed from the LaocoÃ¶n group to portray the blind face of Homer, who stands above a woman holding a scroll inscribed with her name, Sappho. Surrounded by the Muses and various poets, Apollo plays a violin in that painting, Parnassus. For 10 points, name this Italian Renaissance painter whose namesake Vatican stanzae contain his The School of Athens.
In the lower right of one of this artist's paintings, a self-portrait looks at the viewer while kneeling in a group of Swiss Guards.
Raphael [or  Raffaello Sanzio]