During the concluding stages of the Thirty Years' War.
In his concluding years, however, the archbishop showed rather more independence.
The introduction to the whole work, treating of the value of philosophy and of philosophical sects, is lost, with the exception of the concluding portion; the second book is little more than a fragment, and the third and fourth have been amalgamated by altering the original sections.
In this struggle the syndic, Philibert Berthelier, succeeded in concluding (1519) an alliance with Fribourg, which, however, had to be given up almost immediately.
There is some evidence that he was summoned to the Council of Chalcedon,' though he could not attend it, and the concluding portion of his book known as The Bazaar of Heraclides not only gives a full account of the "Robber Synod" of Ephesus 449, but knows that Theodosius is dead (July 450) and seems aware of the proceedings of Chalcedon and the flight of Dioscurus the unscrupulous successor of Cyril at Alexandria.