Mnaseas is reckoned to have been a pupil of a scholar who was chief librarian at what library?
Mnaseas Mnaseas of Patrae (Ancient Greek: Μνασέας ὁ Πατρεύς ) or of Patara, whether that in Lycia or perhaps the Patara in Cappadocia was a Greek historian of the late 3rd century BCE, who is reckoned to have been a pupil in Alexandria of Eratosthenes. His "Periegesis" or "Periplus" described Europe, Western Asia and North Africa, but whether in six or eight books cannot now be determined. His "On Oracles" appears to have consisted of a catalogue of oracular responses with commentary. Only fragments of his work survive, some found in fragmentary papyri at Oxyrhynchus, others embedded as scholia or as quotations in other works, often selected, apparently, because of the unusual interpretations they offer.
Tiberius Julius Celsus Polemaeanus Tiberius Julius Celsus Polemaeanus (Greek: Τιβέριος Ιούλιος Κέλσος Πολεμαιανός, "Tibérios Ioúlios Kélsos Polemaianós" ) commonly known as Celsus (ca. 45 – before ca. 120) was an Ancient Greek Roman citizen who became a Roman senator, and served as a Roman consul as the colleague of Lucius Stertinius Avitus. Celsus Polemaeanus was a wealthy and popular citizen and benefactor of Ephesus, and was buried in a sarcophagus beneath the famous Library of Celsus, which was built as a mausoleum in his honor by his son Tiberius Julius Aquila Polemaeanus.