Smith, Damian J. <br/><br/>
Pope Gregory IX (1227-1241): Power and Authority 

 -  Walter de Gruyter  Walter de Gruyter  2023 
<br/><br/><label>ISBN: </label>9789048554607 
<br/><br/><label>Source: </label>EBOOK 
<br/><br/><label>Subjects--Topical Terms: </label><br/>History