There are Councils - and then there are councils 700 years ago, the Decrees of the 15th Ecumenical Council
Valid? - Certainly.
Recognized? - Why not?
Dealing with contingencies of its time? - Always.
Relevant for all eternity?...
No, not every Ecumenical Council has to be considered relevant for all time just because it was a valid and recognized council. The Council of Vienne, the 15th Ecumenical Council, reaches its 700 anniversary this year. In fact, one of the most important of