Konzept für ein Familienbildnis von Ferdinand III.:

The Emperor appears as Jupiter, seated on an eagle, on the ground, [in] his right hand an olive branch, in his left his thunderbolt, and crowned with laurels, thus might my portrait be rendered. From the skies the two deceased Empresses as Juno and Ceres, the one offering him riches, the other fruitfulness. The Queen from Spain as Minerva, presenting armour and art. Bellona, the present Roman Empress, casting military instrumenta at his feet. Archduke Leopold Wilhelm in the shape of Mars, also offering instrumenta bellica. The Roman King in the shape of Apollo, with musical instruments. My little son in the shape of Cupid, but clothed, presenting quiver and bow.