IPN KR 1, IPN KR 19, IPN KR 307, IPN KR 488, IPN KR 489, IPN KR 502
http://lod.ehri-project-test.eu/units/pl-003077-1900/alternateIDs/1 an entity of type: Identifier
IPN KR 1, IPN KR 19, IPN KR 307, IPN KR 488, IPN KR 489, IPN KR 502