He was constantly in trouble with the Church, though befriended by the Popes on account of his medical knowledge.

There is a Bull of Clement V asking the bishops to search for a medical book by Arnold dedicated to himself, but not many years later his writings were condemned as heretical.
In Henri de Mondeville we have the typical mediaeval surgeon, and we know his work now very thoroughly from the editions of his "Anatomy" and "Surgery" edited by Pagel (Berlin, 1889-1892), and the fine French edition by Nicaise (Paris, 1893).

The dominant Arabic influence is seen in that he quotes so large a proportion of these authors, but he was an independent observer and a practical surgeon of the first rank.

He had a sharp wit and employed a bitter tongue against the medical abuses of his day.

How the Hippocratic humors dominated practice at this time you may see at a glance from the table prepared by Nicaise from the works of de Mondeville.