His numerous works include histories of Arianism, the iconoclastic controversy, the Greek schism, Lutheranism, Calvinism, and of the pontificates of Leo I.
The eleventh contains the lives of all the bishops in order, and includes the chief events during their pontificates; the twelfth deals in the same way with the archbishops, not forgetting the writer himself.
- Monographs dealing expressly with the pontificates of this period are scarce.
And Alexander III., achieved the widest extension of the power entrusted to them, and in many respects their pontificates may be regarded as a preparation for and adumbration of the pontificate of Innocent III.
Lacked vigour, and their pontificates were too brief to allow them to pursue a strong policy against the Germanic The Papacy imperialism.