Canonical URI: http://nomisma.org/id/frederick_william_ii_of_prussia
http://nomisma.org/id/frederick_william_ii_of_prussia#membership_a1acc5973aa7cb561dd451575f1ceca9
http://nomisma.org/id/frederick_william_ii_of_prussia#membership_9f252853705eec8d75e59c510bd703f5