Note 26 — Chapter XIV · EUROPE IN THE DAYS OF INNOCENT III. (1198–1216)[26]
Reading edition
The late M. Luchaire has recently published studies of the chief aspects of Innocent III.’s career in four little volumes, popular in form, but solid in substance. Milman’s Latin Christianity, vol. v., will be found useful as far as it goes. The imperial history is treated in detail by Winkelmann, Philipp von Schwaben und Otto IV. von Braunschweig.