It goes back a very long time in the days of the Russian Empire.
I found this on a rugby forum in Europe written by a Russian member.
Re: Russian Rugby
by STMKY » Fri, 23 Oct 2020, 16:38
Interesting story. It turns out in Russia there is a small people kindred to the Afrikaners! Siberian Golendras! The name Golendr comes from Hollander (Dutch). They are descendants of the Dutch who left their homeland around the 16th century. For more than 300 years they lived in the Polish-Russian borderlands (Volyn and Grodno). In the early 20th century, 30-40 families migrated to Siberia during the Stolypin reforms. Now there are three Golendra villages in the Irkutsk Region. They are located between Krasnoyarsk and Lake Baikal. There are about 2000 golendras in the Irkutsk Region.
They speak a mixed Polish-Russian Slavic language, profess Protestantism, their ancient religious books are written in Polish in Gothic script, they have German surnames and Polish and Russian names! Such an interesting mixed culture.
Why, unlike the Afrikaners, did they not preserve the Dutch language? Because there were not many of them in Poland initially, maybe several thousand people. They lived among the Slavic population, so they adopted the language and culture. But those who remained in Poland have already assimilated. There were world wars on their lands. And only a small group remained in Siberia. Where they lived in Taiga until the middle of the 20th century, even without electricity.
https://www.youtube.com/watch?v=f8d4hF9SAKg