Note that the index numbers are only technical numbers which have no persistence. After a new system generation is done, all of them are invalid. To generate a persistent link, use the name.Use the URL:
http://ww-person.com/cgi-bin/l3/LANG=engl/F=Jacques/N=de@Besiade@de@Sauveterre@*@de@Couvray@et@d'Avray
Jacques de Besiade de Sauveterre * de Couvray et d'Avray
alternatively: /cgi-bin/llmult/LANG=germ/P=6005711