Question: Who is Sabina Grzimek's paternal grandfather?
Sentence (from "Waldemar Grzimek"): Grzimek was born in Rastenburg, East Prussia (now Kętrzyn, Warmia-Masuria) to a Silesian family, which moved to Berlin in 1925 when Grzimek's father Günther Grzimek was elected to the Preußischer Landtag.
Relevant evidence: Yes