Some folks seem to find relying on councils a comfort. For these folks, there are some inconvenient facts that they must face. This post is the eighth in what has become a multi-part series.
Quinisext Ecumenical Council (691) - Council's Ecumenical Status Disputed
The Quinisext Ecumenical Council is recognized by those of Eastern Orthodoxy as being an ecumenical council - connected as part of the 5th and 6th councils, which themselves did not provide canons. It was allegedly endorsed by popes Adrian I, Gregory II, and Innocent III.
Nevertheless, the Catholic Encyclopedia reports:
In fact, the West never recognized the 102 disciplinary canons of this council, in large measure reaffirmations of earlier canons. Most of the new canons exhibit an inimical attitude towards Churches not in disciplinary accord with Constantinople, especially the Western Churches.
Generally, therefore, those who adhere to Catholicism will refer to this council as the council of Trullo or the Trullian Council.