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=deu/F=Jean/N=de@Tilly@*@de@La@Poterie@et@de@La@Tonne
Jean de Tilly * de La Poterie et de La Tonne
alternatively: /cgi-bin/llmult/LANG=germ/P=6007243