This dataset is included in the NDE Dataset Register
What data are there in this dataset?
The open data consists of the metadata of 2,942,107 historical documents from AlleGroningers, containing 9,557,026 historical personal references. The pie chart shows the number of person entries per source type.
How can the dataset be downloaded?
Harvesting (A2A/XML)
The AlleGroningers historical document metadata dataset is provided as an OAI-PMH metadata feed. This feed is an implementation of an OAI-PMH data provider, based on OAI-PMH 2.0. The metadata is structured according to the Archives 2 All (A2A) model.
The URLs to harvests this dataset (set = gra):
Download (A2A/XML)
The dataset can be downloaded in A2A / XML format as a compressed file (.tar.gz):
- DownloadThis file with 2,942,107 records is created on August 23, 2026, the file size is 11 GB (uncompressed) / 1 GB (compressed).
Download (linked data in 'a2a vocabulaire')
The dataset can be downloaded in N-triples format as a compressed file (.ttl.gz.):
- DownloadThis file was created on August 23, 2026 and has a file size of 3 GB (compressed).
Download (CSV)
The dataset can be downloaded in parts in CSV format as a compressed file (.csv.gz):
- DownloadFile with data of source type Population registers. This file with 2,864 lines was created on August 23, 2026, the file size is 1 MB (uncompressed) / 118 KB (compressed).
- DownloadFile with data of source type Births. This file with 833,578 lines was created on August 23, 2026, the file size is 523 MB (uncompressed) / 84 MB (compressed).
- DownloadFile with data of source type Marriages. This file with 303,309 lines was created on August 23, 2026, the file size is 245 MB (uncompressed) / 45 MB (compressed).
- DownloadFile with data of source type Deaths. This file with 792,447 lines was created on August 23, 2026, the file size is 542 MB (uncompressed) / 86 MB (compressed).
- DownloadFile with data of source type Funerals . This file with 97,552 lines was created on August 23, 2026, the file size is 69 MB (uncompressed) / 8 MB (compressed).
- DownloadFile with data of source type Baptisms. This file with 485,961 lines was created on August 23, 2026, the file size is 328 MB (uncompressed) / 43 MB (compressed).
- DownloadFile with data of source type Marriages (church). This file with 199,679 lines was created on August 23, 2026, the file size is 142 MB (uncompressed) / 19 MB (compressed).
License
This dataset is offered by Open Archives under a Creative Commons 0 license (Public Domain Dedication). This means that you can copy, modify, distribute and execute the work, even for commercial purposes, without asking permission. It is appreciated if you contact Open Archives if you use this dataset, maybe we can do even more for each other!
The dataset can contain URLs to images and images of third-party viewers, the CC0-license does not apply to those items! Check the website of the relevant archive which license is linked to that material.
For questions and comments about this dataset, please contact Open Archives.
Datasetbeschrijving in JSON-LD
{
"@context": "https://schema.org/",
"@type": "Dataset",
"@id": "https://www.openarchieven.nl/id/dataset_gra",
"identifier": "https://www.openarchieven.nl/id/dataset_gra",
"name": [
{
"@value": "Dataset genealogische metadata AlleGroningers via Open Archieven",
"@language": "nl"
},
{
"@value": "Dataset genealogical metadata AlleGroningers via Open Archives",
"@language": "en"
}
],
"mainEntityOfPage": {
"@id": "https://www.openarchieven.nl/datasets/gra"
},
"thumbnailUrl": "https://www.openarchieven.nl/img/search/gra-oa-en.png",
"inLanguage": "nl",
"distribution": [
{
"@type": "DataDownload",
"@id": "https://www.openarchieven.nl/.well-known/genid/distribution-gra-oai-pmh",
"contentUrl": "https://api.openarchieven.nl/oai-pmh/?verb=ListRecords&metadataPrefix=oai_a2a&set=gra",
"encodingFormat": "application/xml",
"genre": "OAI-PMH-endpoint",
"description": [
{
"@value": "OAI-PMH endpoint met XML gebaseerd op het A2A model",
"@language": "nl"
},
{
"@value": "OAI-PMH endpoint with XML based on the A2A model",
"@language": "en"
}
]
},
{
"@type": "DataDownload",
"@id": "https://www.openarchieven.nl/.well-known/genid/distribution-gra-nt",
"contentUrl": "https://oa-export.s3.nl-ams.scw.cloud/nt/gra.nt.gz",
"description": [
{
"@value": "Gecomprimeerd N-triples bestand",
"@language": "nl"
},
{
"@value": "Compressed N-triples file",
"@language": "en"
}
],
"contentSize": 2551549861,
"inLanguage": "nl",
"dateModified": {
"@value": "2026-08-23",
"@type": "http://www.w3.org/2001/XMLSchema#date"
},
"license": "https://creativecommons.org/publicdomain/zero/1.0/",
"encodingFormat": "application/n-triples+gzip"
},
{
"@type": "DataDownload",
"@id": "https://www.openarchieven.nl/.well-known/genid/distribution-gra-xml",
"contentUrl": "https://oa-export.s3.nl-ams.scw.cloud/xml/gra.xml.gz",
"description": [
{
"@value": "Gecomprimeerd XML bestand gebaseerd op het A2A model",
"@language": "nl"
},
{
"@value": "Compressed XML file based on the A2A model",
"@language": "en"
}
],
"genre": "Datadump",
"contentSize": 1022856743,
"inLanguage": "nl",
"dateModified": {
"@value": "2026-08-23",
"@type": "http://www.w3.org/2001/XMLSchema#date"
},
"license": "https://creativecommons.org/publicdomain/zero/1.0/",
"encodingFormat": "application/xml+gzip"
}
],
"about": [
{
"@id": "https://terms.personsincontext.org/ThesaurusHistorischePersoonsgegevens/554"
},
{
"@id": "https://terms.personsincontext.org/ThesaurusHistorischePersoonsgegevens/551"
},
{
"@id": "https://terms.personsincontext.org/ThesaurusHistorischePersoonsgegevens/552"
},
{
"@id": "https://terms.personsincontext.org/ThesaurusHistorischePersoonsgegevens/553"
},
{
"@id": "https://terms.personsincontext.org/ThesaurusHistorischePersoonsgegevens/526"
},
{
"@id": "https://terms.personsincontext.org/ThesaurusHistorischePersoonsgegevens/548"
},
{
"@id": "https://terms.personsincontext.org/ThesaurusHistorischePersoonsgegevens/549"
}
],
"isBasedOn": [
"https://opendata.memorix.nl/dataset/gam_a2a_webservice",
"https://webservices.memorix.nl/a2a/6f90fa48-f738-11e5-adca-60f81db16928",
"https://opendata.archieven.nl/dataset/C7D3B98B1F074AD0B12829EAA0BD8026",
"https://opendata.archieven.nl/dataset/26DAFFA3F3B9030EE0630132A8C0CC78",
"https://opendata.archieven.nl/dataset/7876ADC099DB471FADB23AA07971D162",
"https://opendata.archieven.nl/dataset/7D1EE6DB0DCF4F17B08B62543825155F",
"https://opendata.archieven.nl/dataset/12BDAD9D617E40D7B44091FAC618C3E4",
"https://opendata.archieven.nl/dataset/69CD38066F8048C0B2C17B2CECF3BCF1",
"https://opendata.archieven.nl/dataset/09013EAD866B41DDAC293E1DC8DB599B",
"https://opendata.archieven.nl/dataset/FC54CADF147A4F9A920B37D73E421B92",
"https://opendata.archieven.nl/dataset/B09A41AD25CB4E7A8946C1E86092ACB6",
"https://opendata.archieven.nl/dataset/53AE877B1D53468FB0AE4EF4D71B1557",
"https://opendata.archieven.nl/dataset/6D0ABE9A7FB346978B78D421E1C467C9",
"https://opendata.archieven.nl/dataset/E4C36BB3413F44369B8F11F7BCA4B539",
"https://opendata.archieven.nl/dataset/D0EB9E6297234BB8B4B96F242D82442A",
"https://opendata.archieven.nl/dataset/0046EE2DA5C04299AED62DD20DC4E27E",
"https://opendata.archieven.nl/dataset/BC447815E5934E558D3B531C9A5352AA",
"https://opendata.archieven.nl/dataset/B526EBCE884F47C8A9339F96D15A78B5",
"https://opendata.archieven.nl/dataset/AFEA44F63E244EA5B2CC483FFD41CF1A",
"https://opendata.archieven.nl/dataset/D4499DE7AB314A988DB7333769041703"
],
"keywords": [
{
"@value": "Historische persoonsvermeldingen",
"@language": "nl"
},
{
"@value": "Genealogie",
"@language": "nl"
},
{
"@value": "Bevolkingsregisters",
"@language": "nl"
},
{
"@value": "Geboorten",
"@language": "nl"
},
{
"@value": "Huwelijken",
"@language": "nl"
},
{
"@value": "Overlijdens",
"@language": "nl"
},
{
"@value": "DTB Begraven",
"@language": "nl"
},
{
"@value": "DTB Dopen",
"@language": "nl"
},
{
"@value": "DTB Trouwen",
"@language": "nl"
},
{
"@value": "Historical personal data",
"@language": "en"
},
{
"@value": "Genealogy",
"@language": "en"
},
{
"@value": "Population registers",
"@language": "en"
},
{
"@value": "Births",
"@language": "en"
},
{
"@value": "Marriages",
"@language": "en"
},
{
"@value": "Deaths",
"@language": "en"
},
{
"@value": "Funerals",
"@language": "en"
},
{
"@value": "Baptisms",
"@language": "en"
},
{
"@value": "Marriages (church)",
"@language": "en"
}
],
"description": [
{
"@value": "De open data bestaat uit de metadata van 2.942.107 akten van AlleGroningers, met daarop 9.557.026 historische persoonsvermeldingen. De brontypes omvatten bevolkingsregisters, geboorten, huwelijken, overlijdens, dtb begraven, dtb dopen, dtb trouwen. Deze dataset kan doorzocht worden via https://www.openarchieven.nl/gra",
"@language": "nl"
},
{
"@value": "The open data consists of metadata from 2,942,107 records of AlleGroningers, with 9,557,026 historical person observations. The source types included population registers, births, marriages, deaths, funerals, baptisms, marriages (church). This dataset can be searched via https://www.openarchieven.nl/gra",
"@language": "en"
}
],
"license": "https://creativecommons.org/publicdomain/zero/1.0/",
"publisher": {
"@id": "https://www.openarchieven.nl/",
"@type": "Organization",
"name": [
{
"@language": "nl",
"@value": "Open Archieven"
},
{
"@language": "en",
"@value": "Open Archives"
}
],
"logo": "https://www.openarchieven.nl/assets/img/oa/logo200x200-nl.png",
"identifier": "NL-GdOA",
"contactPoint": {
"@id": "https://www.openarchieven.nl/contact",
"@type": "ContactPoint",
"name": [
{
"@value": "Databeheerder Open Archieven",
"@language": "nl"
},
{
"@value": "Datamanager Open Archives",
"@language": "en"
}
],
"email": "genealogie@coret.org"
}
},
"creator": {
"@id": "https://www.allegroningers.nl/",
"@type": "Organization",
"name": [
{
"@value": "AlleGroningers",
"@language": "nl"
}
],
"identifier": "NL-GnGRA",
"contactPoint": {
"name": [
{
"@value": "Dienstverlening AlleGroningers",
"@language": "nl"
},
{
"@value": "Services AlleGroningers",
"@language": "en"
}
],
"telephone": "+31 50 5992000",
"email": "allegroningers@groningerarchieven.nl"
},
"address": {
"@type": "PostalAddress",
"addressLocality": "Groningen",
"postalCode": "9726 AD",
"streetAddress": "Cascadeplein 4",
"addressCountry": "Nederland"
}
},
"spatialCoverage": [
{
"@id": "https://sws.geonames.org/2750405/"
},
{
"@id": "https://sws.geonames.org/2755249/"
},
{
"@id": "https://sws.geonames.org/2755250/"
}
],
"temporalCoverage": "1595/1974",
"includedInDataCatalog": {
"@id": "https://www.openarchieven.nl/id/datacatalog"
},
"dateCreated": {
"@value": "2024-01-17",
"@type": "http://www.w3.org/2001/XMLSchema#date"
},
"dateModified": {
"@value": "2026-08-23",
"@type": "http://www.w3.org/2001/XMLSchema#date"
},
"datePublished": {
"@value": "2024-01-17",
"@type": "http://www.w3.org/2001/XMLSchema#date"
}
}