By the time of Heraclius in the 7th century many of the titles had become obsolete ; by the time of Alexius I, many of the positions were either new or drastically changed, but they remained basically the same from Alexius ' reign to the fall of the Empire in 1453.

By the time of Heraclius in the 7th century many of the titles had become obsolete ; by the time of Alexius I, many of the positions were either new or drastically changed, but they remained basically the same from Alexius ' reign to the fall of the Empire in 1453.

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