Question: Did Paul Kirchhof and Marianne Koberwein share the same nationality?
Sentence (from "Marianne Koberwein"): At the Russian court, she became acquainted with Nicholas I of Russia, with whom she had a daughter, Joséphine Koberwein: in parallel, she married( Joseph) Vassiliévitch Koberwein( 1789- 1854), from whom she divorced soon after.
Relevant evidence: No