John Vatatzes (megas stratopedarches)
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For other people with the same name, see John Vatatzes (disambiguation).
John Vatatzes or Batatzes (Greek: Ἰωάννης Βατάτζης, died 1345) was a Byzantine official and magnate active in the second quarter of the 14th century, playing a prominent role in the Byzantine civil war of 1341–1347.