Mystras (also Mistra or Mistras) was a fortified town in Morea
The name Morea (Morea) for Peloponnesos first appears in the 10th century in Byzantine chronicals. Presumably it stems from the Slavic invaders of the 7th and 8th centuries, who occupied the peninsula and were at last submissed to the Byzantine Empire shortly before 1200. It means "(Land) on the Sea", Slavic "(Zemla) po more". Some scholars (the Peloponnesus Peloponnesos (Greek: Peloponisos, sometime Latinized as Peloponnesus or Anglicized as The Peloponnese) is a large peninsula in Greece, forming the part of the country south of the Isthmus of Corinth. Its name derives from the Ancient Greek Mythological Hero, 'Pelops', who supposedly conquered the entire region. Of the name, Peloponnesos, 'Pelop' refers to this hero and 'nesos' refers to island, therefore the name means the Island of Pelops. ), on Mt. Taygetos, near ancient Sparta
Mystras was also the last centre of Byzantine scholarship; the Neoplatonist Neo-Platonism is an ancient school of philosophy beginning in the 3rd century A.D. It was based on the teachings of Plato and Platonists; but it interpreted Plato in many new ways, such that Neo-Platonism was quite different from what Plato taught, though many Neo-Platonists would not admit the distinction.
Neo-Platonism began with the philosopher Plotinus, though Plotinus claimed to have received his teachings from Ammonius Saccas, an illiterate dock-worker in Alexandria. His most important work was the Six Enneads, in which he explains his philosophy.