Question: Who is the paternal grandfather of Kazimierz Iii Of Gniewkowo?
Sentence (from "Ziemomysł of Kuyavia"): Ziemomysł of Inowrocław (c. 1245 – October/24 December 1287), was a Polish prince member of the House of Piast, Duke of Inowrocław during 1267-1271 and 1278-1287, and ruler over Bydgoszcz during 1267-1269 and 1278-1287.
Relevant evidence: No