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=Joan@II./N=d'Aragó,@Sicilia,@Navarra,@Valencia@et@Mallorca
Joan II. d'Aragó, Sicilia, Navarra, Valencia et Mallorca
alternatively: /cgi-bin/llmult/LANG=germ/P=5005346