1. the council of the Western Church in 1245 that excommunicated Holy Roman Emperor Frederick II and planned a new crusade against the Holy Land; [syn: Lyons, First Council of Lyons]
WordNet (r) 3.0 (2006):
First Council of Lyons
n 1: the council of the Western Church in 1245 that
excommunicated Holy Roman Emperor Frederick II and planned
a new crusade against the Holy Land [syn: Lyons, First
Council of Lyons]