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=Maximilian!@Antonius@Aegidius@Hubertus@Maria@Hugo/N=zu@Windisch-Graetz
Maximilian! Antonius Aegidius Hubertus Maria Hugo zu Windisch-Graetz
alternatively: /cgi-bin/llmult/LANG=germ/P=44002020
Maximilian! Antonius Aegidius Hubertus Maria Hugo zu Windisch-Graetz