^In a series of letters issued to bishop Opizo of Lodi. Paravicini Bagliani, Agostino. Sia fatta la mia volontà. Medioevo: p. 77. 引文格式1维护:冗余文本 (link)
^Ernst Sackur has made it probable that the so-called "Dictatus Papæ" were composed by Deusdedit.", Catholic Encyclopaedia, sub "Cardinal Deusdedit".
^"Until quite recently Gregory VII himself was generally regarded as the author; Löwenfeld (see below) continued to maintain the authorship of Gregory, but Sackur, however, has shown that the "Indices capitulorum" in the "Collectio canonum" of Deusdedit are closely related to the brief theses known as "Dictatus Papæ" both in respect of sense and verbal text. Most probably, therefore, the latter are taken from the collection of Deusdedit, who put them together from the "Registrum Epistolarum" or letterbook of Gregory. Possibly also Deusdedit was the editor of this famous and important collection of Gregory's correspondence." Catholic Encyclopedia 1908, sub "Cardinal Deusdedit".