From 1266, when his name first
appears, to 1276, Siger was prominent in the disputes at Paris over
Aristotelianism. Bonaventure, the minister general of the Order of
Friars Minor, and Aquinas, head of the Dominicans, both attacked Siger's
teachings. In 1270 the bishop of Paris, Étienne Tempier, condemned 13
errors in the teaching of Siger and his partisans. Six years later the
inquisitor of the Roman Catholic Church in France summoned Siger and two
others suspected of heterodoxy, but they fled to Italy, where they
probably entered an appeal before the papal tribunal. A few months
later, in March 1277, Tempier announced condemnation of 219 more
propositions. Siger is believed to have been restricted to the company
of a cleric, for he was stabbed at Orvieto by his cleric, who had gone
mad, and he died during Martin IV's pontificate, sometime before Nov.
10, 1284. Dante, in the Divine Comedy, put Siger in the Heaven of
Light in the brilliant company of 12 illustrious souls...