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=Juan/N=Fernández@Manrique@de@Lara@*@de@Aguilar@de@Campóo@*@de@Castañeda@*@de@Cataluña
Juan Fernández Manrique de Lara * de Aguilar de Campóo * de Castañeda * de Cataluña
alternatively: /cgi-bin/llmult/LANG=germ/P=20015407
Juan Fernández Manrique de Lara * de Aguilar de Campóo * de Castañeda * de Cataluña