Michael VIII Palaiologos

Byzantine emperorAlso: Michael VIII Palaeologus, Michael Palaiologos

Byzantine emperor who sent envoys to the Second Council of Lyon in 1274 to accept the Roman faith and primacy, and forced the union on his clergy. After his death the church of Constantinople repudiated it.

In the letter read at Lyon the emperor accepts the confession of faith sent to him by the pope, with the procession of the Spirit from the Father and the Son and the primacy of the Roman church, and asks that his church may keep its creed and rites as they were (Michael VIII, Profession of Faith (1274) cols 67–74). The introduction printed with the council’s decrees notes that he had taken Constantinople from the Latins in 1261 and wanted the pope’s support against Charles of Anjou (Second Council of Lyon, introduction).

Pachymeres, who watched from among the clergy of Constantinople, reports his argument to the bishops, that union came to three concessions empty in practice (Pachymeres, History, Michael 5.18, pp. 386–390), and his treatment of those who refused: an oath that the creed would not be touched, and exile for any who would not sign (Pachymeres, History, Michael 5.20, p. 395). Pachymeres tells how he took communion on his deathbed and was carried by night to a nearby monastery, having reigned twenty-four years less twenty days (Pachymeres, History, Michael 6.36, p. 531). His son Andronikos then sought the pardon of the union’s opponents, who had the great church purified and the unionist clergy punished (Pachymeres, History, Andronikos 1.2–7, pp. 14–22). See the Second Council of Lyon.

In the timeline

  1. May 1274, firm date
    The Second Council of Lyon

    Gregory X holds a general council at Lyon, where envoys of the Byzantine emperor Michael VIII accept the Roman faith and primacy. The council also fixes the rules of the papal conclave. After the emperor’s death the Greek church repudiates the union.

Primary sources

Letter and Profession of Faith to Gregory X

Michael VIII Palaiologos · AD 1274 · Greek and Latin

Constitutions of the Second Council of Lyon

The Second Council of Lyon · May–July 1274; promulgated 1 November 1274 · Latin

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