Question: Who is the paternal grandfather of Henry Iii, Landgrave Of Upper Hesse?
Sentence (from "Henry III, Landgrave of Upper Hesse"): His nickname "the Rich" is indicative of his fortune in territory and tolls on the Rhine received by his marriage to Anna, daughter and heir of Philipp, the last Count of Katzenelnbogen and his wife Anne of Württemberg.
Relevant evidence: No