 The connection between Pythagoreanism and astrology visible in Nigidius can perhaps also be seen in Thrasyllus of Alexandria (d. 36 CE), the court astrologer and philosopher, whom the Roman emperor Tiberius met in Rhodes and brought to Rome. Thrasyllus is famous for his edition of Plato’s dialogues arranged into tetralogies, but he was a Platonist with strong Pythagorean leanings. Porphyry in his Life of Plotinus (20) quotes Longinus as saying that Thrasyllus wrote on Platonic and Pythagorean first principles (Dillon 1977, 184–185). Most suggestive of all is the quotation from Thrasyllus preserved by Diogenes Laertius (Diogenes Laertius IX 38), in which Thrasyllus calls Democritus a zealous follower of the Pythagoreans and asserts that Democritus drew all his philosophy from Pythagoras and would have been thought to have been his pupil, if chronology did not prevent it. It is impossible to be sure what Thrasyllus had in mind here, but one very plausible suggestion is that he is thinking of Democritus as a sage, who practiced magic, the Democritus created by Bolus, who was the successor to the arch mage Pythagoras, the supposed author of the treatise on the magical uses of plants (Dickie 2001, 195). Some have argued that the subterranean basilica discovered near the Porta Maggiore and dating to the first century CE was the meeting place of a Pythagorean community but the evidence for this suggestion is very weak (Flinterman 2014).