Pappus of Alexandria
Porphyry of Tyre (; , "Porphýrios"; , "Furfūriyūs"; – ) was a Phoenician Neoplatonic philosopher born in Tyre, Roman Syria during Roman rule. He edited and published "The Enneads", the only collection of the work of Plotinus, his teacher. His commentary on Euclid's "Elements" was used as a source by Pappus of Alexandria.