Lucius Cocceius Auctus (1st century BC and 1st century AD) was a Roman architect employed by Octavian's strategist (and intended successor) Agrippa to excavate the subterranean passageways known as the crypta neapolitana connecting modern-day Naples and Pozzuoli and the Grotta di Cocceio, connecting Lake Avernus and Cumae. Cocceius was responsible for the conversion of the Capitolium in Pozzuoli into a Temple of Augustus with the backing of the merchant Lucius Calpurnius. Cocceius Auctus also built the original Pantheon in Rome. Further reading Adam, Jean-Pierre. La construction romaine (3rd edition), Picard, Paris (France), , 1984; pp. 306–307. Lamprecht, Heinz-Otto. Opus Caementitium (4th edition), Beton-Verlag, Düsseldorf (Germany), , 1993; pp. 229. See also Cocceia gens References 1st-century BC births 1st-century deaths 1st-century BC Romans 1st-century Romans Ancient Roman architects Auctus, Lucius 1st-century BC architects