An Arabian author, al-Qifti (d. 1248), recorded that Euclid's father was Naucrates and his grandfather was Zenarchus, that he was a Greek, born in Tyre and lived in Damascus. But there is no real proof that this is the same Euclid. In fact, another man, Euclid of Megara, a philosopher who lived at the time of Plato, is often confused with Euclid of Alexandria.