From the Wikibooks page on Claude Martin [1]

Claude Martin claims that the Voynich Manuscript would contain a phoney text, based on numeric sequences transcribed into anagrams. For example, a line forged on sequence 345678 would be retranscribed into 643875. This "fill in text method" would be used to produce text having some semantic similarities with a real text.

His website, in French is [2]

There are various counter-arguments to this (even if 'the usual problems' with resolving anagrams are ignored for this purpose). It would require a considerable amount of time and work to generate the text of several hundred pages and in a form that resembles 'an ordinary written text' of the period (as well as the cost of the materials and the absence of surviving draft versions, which would have to exist).

For the French officer (and art collector) see [3], the rower [4] and the former Director General of the WWF [5].