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@de@Velasco@y@Tovar@*@de@Frías@*@de@Berlanga@*@de@Haro
Juan Fernández de Velasco y Tovar * de Frías * de Berlanga * de Haro
alternatively: /cgi-bin/llmult/LANG=germ/P=20001291
Juan Fernández de Velasco y Tovar * de Frías * de Berlanga * de Haro