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
Sandro Botticelli landscape, reflecting the traditional date of the saint's martyrdom and feast-day in January, is also one of Botticelli's more impressive efforts. At the start of 1474 Botticelli was asked by the authorities in Pisa to join the work frescoing the Camposanto, a huge and prestigious project mostly being done by Benozzo Gozzoli, who spent nearly twenty years on it. Various payments up to September are recorded, but no work survives, and it seems that whatever Botticelli started was not finished. Whatever the outcome, that Botticelli was approached from outside Florence demonstrates a growing reputation. The "Adoration of the Magi" for