Ioannis Triantafyllou or ‘Makrygiannis’ (1797-1864) was born at Avoritis, Fokida. From a very young age he started being involved in trade and thus on the eve of the Revolution he had acquired a substantial property. He was initiated into the Filiki Etairia, and most likely he was active as the ‘first official Greek spy of the Revolution’. He fought at Tzoumerka, Arta, Athens and Mylous. He engaged actively in political affairs during the Revolution, as well as later on. He has been immortalised within Neo-Hellenic consciousness thanks to his ‘Memoirs’ and his work titled ‘Visions and Miracles’.