Dataset genealogical metadata National Archives via Open Archives

The open data consists of metadata from 4,450,903 records of National Archives, with 4.172.557 historical person observations. The source types included baptisms, marriages (church). This dataset can be searched via https://www.openarchieven.nl/ghn

Distributions

N-Triples
https://oa-export.s3.nl-ams.scw.cloud/nt/ghn.nt.gz (opens in new tab)

Compressed N-triples file

Modified: 1/17/2024 File Size: 3.8 MB
Verified
XML
https://oa-export.s3.nl-ams.scw.cloud/xml/ghn.xml.gz (opens in new tab)

Compressed XML file based on the A2A model

Modified: 10/28/2025 File Size: 545.5 MB

Linked Data Summary

68,650
Unique subjects
533,384
Triples
7.8
Avg. triples per subject
50
Unique predicates

Classes

Class
Entities
openarch.nl/…f/a2a#Person
23,894
32%
openarch.nl/…a#RelationEP
23,894
32%
openarch.nl/def/a2a#Event
6,954
9%
openarch.nl/…f/a2a#Record
6,954
9%
openarch.nl/…f/a2a#Source
6,954
9%
openarch.nl/…ailableScans
6,349
8%

Properties

Property
Entities
rdfs:label
113,471
49%
openarch.nl/…#EventKeyRef
23,894
10%
openarch.nl/…PersonKeyRef
23,894
10%
openarch.nl/…a#PersonName
23,894
10%
openarch.nl/…RelationType
23,894
10%
openarch.nl/…NameLastName
23,891
10%

Value Types

Value Type
Triples
xsd:string
165,387
59%
openarch.nl/…f/a2a#Person
47,788
17%
openarch.nl/def/a2a#Event
30,848
11%
openarch.nl/…a#RelationEP
23,894
8%
openarch.nl/…f/a2a#Source
6,954
2%
xsd:date
6,954
2%

Registration

Registered on
December 22, 2023 at 01:54 PM
Last read
6 hours ago
Quality Rating
100%