Question: Who is the paternal grandfather of Henry Of Castile The Senator?
Sentence (from "Henry of Castile the Senator"): Henry of Castile (March 1230 – 8 August 1303), called the Senator ("el Senador"), was a Castilian "infante", the fourth son of Ferdinand III of Castile by his first wife, Beatrice of Swabia.
Relevant evidence: Yes