Eastern scholars have long accused John VIII Palaiologos of sacrificing the faith for temporal gain when he oversaw the Union of Florence. Westerners have blamed him for the union's ultimate failure. These competing narratives both err by too sharply differentiating between religion and politics, and allowing the opinions of John's contemporary critics to colour their interpretations of his actions. A contextual analysis of John's activities during and after the council finds his behaviour in keeping with the best elements of his tradition and suggests the potential for a new historiography of Ferrara-Florence which might help to dislodge entrenched ecclesial animosities.