ADHEMAR (ADEMAR, AIMAR, AELARZ) DE MONTEIL (d. 1098), one of the principal personages of the first crusade, was bishop of Puy en Velay from before 1087. At the council of Clermont in 1095 he showed great zeal for the crusade, and having been named apostolic legate by the pope, he accompanied Raymond IV., count of Toulouse, to the east. He negotiated with Alexis Comnenus at Constantinople, re-established at Nicaea some discipline among the crusaders, caused the siege of Antioch to be raised and died in that city of the plague on the 1st of August 1098.
See the article by C. Kohler in La Grande
Encyclopedie; Bibliographie du Velay (1902), 640-650.
Note - this article incorporates content from Encyclopaedia Britannica, Eleventh Edition, (1910-1911)