The Birth of Venus Dorotheus". Pliny also noted a second painting by Apelles of Venus "superior even to his earlier one," that had been begun by artist but left unfinished. The Roman images in various media showing the new-born Venus in a giant shell may well be crude derivative versions of these paintings. Botticelli could not have seen the frescos unearthed later in Pompeii, but may well have seen small versions of the motif in terracotta or engraved gems. The "House of Venus" in Pompeii has a life-size fresco of Venus lying in the shell, also seen in other works; in most other images
The Birth of Venus of Florence, perhaps by Lorenzo di Pierfrancesco de' Medici (1463–1503) a major patron of Botticelli, under the influence of his cousin Lorenzo de' Medici, "il Magnifico". This was first suggested by Herbert Horne in his monograph of 1908, the first major modern work on Botticelli, and long followed by most writers, but more recently has been widely doubted, though it is still accepted by some. Various interpretations of the painting rely on this origin for its meaning. Although relations were perhaps always rather tense between the "Magnifico" and his young cousins and wards, Lorenzo di Pierfrancesco and his brother Giovanni