The Spanish version (from which I clipped the first 50 plates) and the English version (only Vol. II) are available to read courtesy of HathiTrust. (This is of course only if you’re looking specifically for the edition illustrated by Doré.) Otherwise, a decent reading copy of Michaud’s history in English is (fortunately) much more readily available.

Gustave Doré produced 100 plates for the 1875 edition of Joseph Francois Michaud’s History of Crusades, these being published late in the artist’s career during a period critics regard as the full maturity of his ability. Doré was both a painter and an illustrator, and a conssumate worker who illustrated perhaps as many as 80 books in his lifetime, though the massive celebrity Doré won by his illustrations never quite compensated for the cold reception that critics gave to his paintings. At this stage of his career, Doré was sufficiently established to start his own school of artists and etchers, training them in techniques that he developed.

Note: These images are in the public domain. For more information, see A Primer on Image Rights on OBA.