The State Archives in Plock | Archiwum Państwowe w Płocku in Poland has free, online genealogy collections as well as onsite family history collections. This archive performs paid genealogical research upon request (or see this pdf).


This archive has two branch offices:

The State Archives in Plock Branch in Kutno
about this archive
ul. Zamkowa 4a
99-300 Kutno
tel. +48 24 253 39 81
fax. +48 24 721 29 27

The State Archives in Plock Branch in Łęczyca
about this archive
ul. Belwederska 38
99-100 Łęczyca
tel / fax: +48 24 721 29 27


About the Collections:

“Płock has great archival traditions dating back to the 13th century. At that time, the Archive of the Płock Castle was created – one of the oldest archives in Poland. They collected files created by the chancellor and staroste. The staroste supervised the castle, administered princely estates and exercised judiciary over the castle. With time, he delegated his powers to the town and then to the land courts. As a result of their activity, town and earth books were created. The Castle Archive functioned until the mid-17th century. Numerous wars led to the scattering of its resources. The remaining part was destroyed by the Swedes in 1705, winning the Castle. The fate of these documents is unknown. Only a small part of the collection was transferred to the Archive of Historical Records created in 1825.”

“The second archive that survived to this day was the Diocesan Archive. Files were kept there as a result of the Bishop’s office as a diocesan governor. More important princely documents were placed there. To this day, the location document of the city of Płock from 1237 is kept in this archives. During World War II, the whole resource was transported to Koenigsberg, then to Germany. Most of the collections, however, returned to Płock. Today, the resource is considered one of the most valuable archival collections. The seat of the Diocesan Archives from 1925 is the Diocesan Library.”    Description of the collections.


Online Collections:

The State Archives in Plock has thousands of digitized collections, including vital records, and these are at

You can see all online collections from the State Archives in Plock and its branches in Kutno and Łęczyca by searching at and filtering results by these archives. Here’s a link to the search results with thousands of digitized collections.

You can copy and paste text into Google Translate if you can’t read the original language.


Onsite Collections:

Here is an explanation of their onsite and online collections. You can use SEZAM to search for collections at the archive.

      • Here is an example of a search for collections at the State Archives in Plock.
      • Here is an example of a search for collections at the State Archives in Plock Branch in Kutno.
      • Here is an example of a search for collections at the State Archives in PlockBranch in Łęczyca.




Monday: 9:00 am – 3:00 pm
Tuesday: 9:00 am – 3:00 pm
Wednesday: 9:00 am – 5:30 pm
Thursday: 9:00 am – 3:00 pm
Friday: 9:00 am – 3:00 pm
Saturday: Closed
Sunday: Closed

Exceptions and Extended Hours


2 responses to “State Archives in Plock”

  1. I am attempting to use the Plock archives. I live in
    USA , Pacific Standard Time. I don’t understand the Polish language. My Polish relatives came from Plock. How do I access genealogical information?

    1. Teresa,

      Here are some instructions for translating a Polish website and supporting text into English:

      If you don’t read Polish and are unable to do the Polish research yourself, the Plock archives has research services you can pay for. This is linked to at this listing. They have a Polish PDF you can download (in small print at the bottom of this page: and translate using the link above. Follow the directions for the third option, translating documents or PDFs.

      Best with your research,



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