Find genealogical data from Dutch and Belgian archives

Name	Role	Event	DateYear	Place	Source
Willem van der Erff	Witness	Baptism	12-1-1746	Haarlem	Church records baptisms
Willem van der Erff	Father	Baptism	17-12-1734	Haarlem	Church records baptisms
Willem van der Erff	Witness	Baptism	27-8-1749	Haarlem	Church records baptisms

Find your ancestors and publish your family tree on Genealogy Online via https://www.genealogieonline.nl/en/

You can instruct Open Archives to monitor this search. When there are new search results you will be notified by e-mail.

The results of the search can be downloaded in PDF and GEDCOM format.

To use this functionality, you must have a subscription and be logged in.

You can download the result list in spreadsheet format (CSV or XLS). This is possible up to a maximum of 10,000 results.

To use this functionality, you must have a subscription and be logged in.

Search results (filtered)