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=germ/F=François@Agenor@Alexandre@Helie/N=de@Noailles@et@d'Ayen
François Agenor Alexandre Helie de Noailles et d'Ayen
alternatively: /cgi-bin/llmult/LANG=germ/P=6001299