George Pachymeres was a Byzantine Greek historian, philosopher, music theorist and miscellaneous writer.
Portrait of George Pachymeres in his History
Michael VIII Palaiologos or Palaeologus reigned as Byzantine emperor from 1261 until his death in 1282, and previously as the co-emperor of the Empire of Nicaea from 1259 to 1261. Michael VIII was the founder of the Palaiologan dynasty that would rule the Byzantine Empire until the Fall of Constantinople in 1453. He recovered Constantinople from the Latin Empire in 1261 and transformed the Empire of Nicaea into a restored Byzantine Empire. His reign saw considerable recovery of Byzantine power, including the enlargement of the Byzantine army and navy. It also included the reconstruction of the city of Constantinople, and the increase of its population. His re-establishment of the University of Constantinople contributed to the Palaeologan Renaissance, a cultural flowering between the 13th and 15th centuries.
15th-century miniature of Michael VIII, National Library of Russia.
Imperial eagle in Mystras. In 1263 the Latins ceded Mystras as ransom for William II of Villehardouin, and Michael VIII Palaeologus made the city the seat of the new Despotate of Morea, ruled by his relatives.
The restored Byzantine Empire in 1265 (William R. Shepherd, Historical Atlas, 1911)
Coin of Michael VIII, depicting the Virgin Mary rising over the walls of Constantinople, in commemoration of the capture of the city over the Latins.