The signatories of the peace of Constance were divided between leaguers and imperialists.
In 1535 he received his cardinal's hat; in1536-1537he was nominated "lieutenant-general" to the king at Paris and in the Ile de France, and was entrusted with the organization of the defence against the imperialists.
The plaintiffs in each case were imperialists; and Fredericks first action was to redress their supposed grievances.
In spite of repeated efforts on the part of the Ghibellines, in spite of King Roberts supine incapacity, the imperialists gained no permanent advantage.
In 1670, fleeing from the dangers of Upper Hungary, where the Protestants and Imperialists were constantly in arms against each other, he took refuge with his kinsman Michael Teleki, the chief minister of Michael Apafy, prince of Transylvania.