[Olog-hai]

Yes, that’s true. It was his father that converted to Lutheranism.

[Honorary Serb]

Karl Marx himself was baptized in the Lutheran Church, and was presumably confirmed also.

https://landmarkevents.org/the-baptism-of-karl-marx-1824/#:~:text=In%20fact%2C%20at%20the%20age,Church%20on%20August%2028%2C%201824.&text=Why%20did%20a%20descendant%20of,Trier%20along%20the%20Moselle%20River.

But of course it did not “take”.

There are unfortunately many others with a similar course of life, even if they do not become famous radicals.